diff --git a/services/web/app/src/Features/Subscription/GroupPlansData.js b/services/web/app/src/Features/Subscription/GroupPlansData.js
index 144d0d811b..660abd51b3 100644
--- a/services/web/app/src/Features/Subscription/GroupPlansData.js
+++ b/services/web/app/src/Features/Subscription/GroupPlansData.js
@@ -42,7 +42,7 @@ for (const [usage, planData] of Object.entries(groups)) {
 
     // Generate plans in settings
     for (const size of sizes) {
-      Settings.plans.push({
+      let plan = {
         planCode: `group_${planCode}_${size}_${usage}`,
         name: `${
           Settings.appName
@@ -55,8 +55,19 @@ for (const [usage, planData] of Object.entries(groups)) {
         features: Settings.features[planCode],
         groupPlan: true,
         membersLimit: parseInt(size),
-        membersLimitAddOn: 'additional-license',
-      })
+        // Unlock flexible licensing for all plans
+        canUseFlexibleLicensing: true,
+      }
+
+      // Add the `membersLimitAddOn` only to group plans of 5 or greater size
+      if (size >= 5) {
+        plan = {
+          ...plan,
+          membersLimitAddOn: 'additional-license',
+        }
+      }
+
+      Settings.plans.push(plan)
     }
   }
 }
diff --git a/services/web/app/src/Features/Subscription/RecurlyClient.js b/services/web/app/src/Features/Subscription/RecurlyClient.js
index 593b0286ab..bbe7fe26bc 100644
--- a/services/web/app/src/Features/Subscription/RecurlyClient.js
+++ b/services/web/app/src/Features/Subscription/RecurlyClient.js
@@ -247,7 +247,8 @@ function subscriptionFromApi(apiSubscription) {
     apiSubscription.total == null ||
     apiSubscription.currency == null ||
     apiSubscription.currentPeriodStartedAt == null ||
-    apiSubscription.currentPeriodEndsAt == null
+    apiSubscription.currentPeriodEndsAt == null ||
+    apiSubscription.createdAt == null
   ) {
     throw new OError('Invalid Recurly subscription', {
       subscription: apiSubscription,
@@ -268,6 +269,7 @@ function subscriptionFromApi(apiSubscription) {
     currency: apiSubscription.currency,
     periodStart: apiSubscription.currentPeriodStartedAt,
     periodEnd: apiSubscription.currentPeriodEndsAt,
+    createdAt: apiSubscription.createdAt,
   })
 
   if (apiSubscription.pendingChange != null) {
diff --git a/services/web/app/src/Features/Subscription/RecurlyEntities.js b/services/web/app/src/Features/Subscription/RecurlyEntities.js
index 18288c72d8..237bfc442e 100644
--- a/services/web/app/src/Features/Subscription/RecurlyEntities.js
+++ b/services/web/app/src/Features/Subscription/RecurlyEntities.js
@@ -6,6 +6,7 @@ const PlansLocator = require('./PlansLocator')
 const SubscriptionHelper = require('./SubscriptionHelper')
 
 const AI_ADD_ON_CODE = 'assistant'
+const MEMBERS_LIMIT_ADD_ON_CODE = 'additional-license'
 const STANDALONE_AI_ADD_ON_CODES = ['assistant', 'assistant-annual']
 
 class RecurlySubscription {
@@ -24,6 +25,7 @@ class RecurlySubscription {
    * @param {number} props.total
    * @param {Date} props.periodStart
    * @param {Date} props.periodEnd
+   * @param {Date} props.createdAt
    * @param {RecurlySubscriptionChange} [props.pendingChange]
    */
   constructor(props) {
@@ -40,6 +42,7 @@ class RecurlySubscription {
     this.total = props.total
     this.periodStart = props.periodStart
     this.periodEnd = props.periodEnd
+    this.createdAt = props.createdAt
     this.pendingChange = props.pendingChange ?? null
   }
 
@@ -129,12 +132,13 @@ class RecurlySubscription {
    *
    * @param {string} code
    * @param {number} [quantity]
+   * @param {number} [unitPrice]
    * @return {RecurlySubscriptionChangeRequest} - the change request to send to
    * Recurly
    *
    * @throws {DuplicateAddOnError} if the add-on is already present on the subscription
    */
-  getRequestForAddOnPurchase(code, quantity = 1) {
+  getRequestForAddOnPurchase(code, quantity = 1, unitPrice) {
     if (this.hasAddOn(code)) {
       throw new DuplicateAddOnError('Subscription already has add-on', {
         subscriptionId: this.id,
@@ -143,7 +147,9 @@ class RecurlySubscription {
     }
 
     const addOnUpdates = this.addOns.map(addOn => addOn.toAddOnUpdate())
-    addOnUpdates.push(new RecurlySubscriptionAddOnUpdate({ code, quantity }))
+    addOnUpdates.push(
+      new RecurlySubscriptionAddOnUpdate({ code, quantity, unitPrice })
+    )
     return new RecurlySubscriptionChangeRequest({
       subscription: this,
       timeframe: 'now',
@@ -431,6 +437,7 @@ function isStandaloneAiAddOnPlanCode(planCode) {
 
 module.exports = {
   AI_ADD_ON_CODE,
+  MEMBERS_LIMIT_ADD_ON_CODE,
   RecurlySubscription,
   RecurlySubscriptionAddOn,
   RecurlySubscriptionChange,
diff --git a/services/web/app/src/Features/Subscription/SubscriptionGroupController.mjs b/services/web/app/src/Features/Subscription/SubscriptionGroupController.mjs
index 53de39071f..efa63ab11c 100644
--- a/services/web/app/src/Features/Subscription/SubscriptionGroupController.mjs
+++ b/services/web/app/src/Features/Subscription/SubscriptionGroupController.mjs
@@ -128,6 +128,7 @@ async function addSeatsToGroupSubscription(req, res) {
         req
       )
     await SubscriptionGroupHandler.promises.ensureFlexibleLicensingEnabled(plan)
+    await SubscriptionGroupHandler.promises.ensureAddSeatsEnabled(plan)
 
     res.render('subscriptions/add-seats', {
       subscriptionId: subscription._id,
diff --git a/services/web/app/src/Features/Subscription/SubscriptionGroupHandler.js b/services/web/app/src/Features/Subscription/SubscriptionGroupHandler.js
index f6baea3852..e12fb09762 100644
--- a/services/web/app/src/Features/Subscription/SubscriptionGroupHandler.js
+++ b/services/web/app/src/Features/Subscription/SubscriptionGroupHandler.js
@@ -7,6 +7,8 @@ const SessionManager = require('../Authentication/SessionManager')
 const RecurlyClient = require('./RecurlyClient')
 const PlansLocator = require('./PlansLocator')
 const SubscriptionHandler = require('./SubscriptionHandler')
+const GroupPlansData = require('./GroupPlansData')
+const { MEMBERS_LIMIT_ADD_ON_CODE } = require('./RecurlyEntities')
 
 async function removeUserFromGroup(subscriptionId, userIdToRemove) {
   await SubscriptionUpdater.promises.removeUserFromGroup(
@@ -57,7 +59,13 @@ async function _replaceInArray(model, property, oldValue, newValue) {
 
 async function ensureFlexibleLicensingEnabled(plan) {
   if (!plan?.canUseFlexibleLicensing) {
-    throw new Error('The group plan does not support flexible licencing')
+    throw new Error('The group plan does not support flexible licensing')
+  }
+}
+
+async function ensureAddSeatsEnabled(plan) {
+  if (!plan?.membersLimitAddOn) {
+    throw new Error('The group plan does not support adding seats')
   }
 }
 
@@ -88,29 +96,60 @@ async function _addSeatsSubscriptionChange(req) {
   const { recurlySubscription, plan } =
     await getUsersGroupSubscriptionDetails(req)
   await ensureFlexibleLicensingEnabled(plan)
+  await ensureAddSeatsEnabled(plan)
   const userId = SessionManager.getLoggedInUserId(req.session)
   const currentAddonQuantity =
     recurlySubscription.addOns.find(
-      addOn => addOn.code === plan.membersLimitAddOn
+      addOn => addOn.code === MEMBERS_LIMIT_ADD_ON_CODE
     )?.quantity ?? 0
   // Keeps only the new total quantity of addon
   const nextAddonQuantity = currentAddonQuantity + adding
-  const changeRequest = recurlySubscription.getRequestForAddOnUpdate(
-    plan.membersLimitAddOn,
-    nextAddonQuantity
-  )
+
+  let changeRequest
+  if (recurlySubscription.hasAddOn(MEMBERS_LIMIT_ADD_ON_CODE)) {
+    // Not providing a custom price as once the subscription is locked
+    // to an add-on at a given price, it will use it for subsequent payments
+    changeRequest = recurlySubscription.getRequestForAddOnUpdate(
+      MEMBERS_LIMIT_ADD_ON_CODE,
+      nextAddonQuantity
+    )
+  } else {
+    let unitPrice
+    const newPlanPricesAppliedAt = new Date('2025-01-08T14:00:00Z')
+    const isLegacyPriceApplicable =
+      new Date(recurlySubscription.createdAt) < newPlanPricesAppliedAt
+
+    if (isLegacyPriceApplicable) {
+      const pattern =
+        /^group_(collaborator|professional)_(5|10|20|50)_(educational|enterprise)$/
+      const [, planCode, size, usage] = plan.planCode.match(pattern)
+      const currency = recurlySubscription.currency
+      const legacyPriceInCents =
+        GroupPlansData[usage][planCode][currency][size]
+          .additional_license_legacy_price_in_cents
+
+      if (legacyPriceInCents > 0) {
+        unitPrice = legacyPriceInCents / 100
+      }
+    }
+
+    changeRequest = recurlySubscription.getRequestForAddOnPurchase(
+      MEMBERS_LIMIT_ADD_ON_CODE,
+      nextAddonQuantity,
+      unitPrice
+    )
+  }
 
   return {
     changeRequest,
     userId,
     currentAddonQuantity,
     recurlySubscription,
-    plan,
   }
 }
 
 async function previewAddSeatsSubscriptionChange(req) {
-  const { changeRequest, userId, currentAddonQuantity, plan } =
+  const { changeRequest, userId, currentAddonQuantity } =
     await _addSeatsSubscriptionChange(req)
   const paymentMethod = await RecurlyClient.promises.getPaymentMethod(userId)
   const subscriptionChange =
@@ -120,9 +159,9 @@ async function previewAddSeatsSubscriptionChange(req) {
       {
         type: 'add-on-update',
         addOn: {
-          code: plan.membersLimitAddOn,
+          code: MEMBERS_LIMIT_ADD_ON_CODE,
           quantity: subscriptionChange.nextAddOns.find(
-            addon => addon.code === plan.membersLimitAddOn
+            addon => addon.code === MEMBERS_LIMIT_ADD_ON_CODE
           ).quantity,
           prevQuantity: currentAddonQuantity,
         },
@@ -216,6 +255,7 @@ module.exports = {
   removeUserFromGroup: callbackify(removeUserFromGroup),
   replaceUserReferencesInGroups: callbackify(replaceUserReferencesInGroups),
   ensureFlexibleLicensingEnabled: callbackify(ensureFlexibleLicensingEnabled),
+  ensureAddSeatsEnabled: callbackify(ensureAddSeatsEnabled),
   getTotalConfirmedUsersInGroup: callbackify(getTotalConfirmedUsersInGroup),
   isUserPartOfGroup: callbackify(isUserPartOfGroup),
   getGroupPlanUpgradePreview: callbackify(getGroupPlanUpgradePreview),
@@ -224,6 +264,7 @@ module.exports = {
     removeUserFromGroup,
     replaceUserReferencesInGroups,
     ensureFlexibleLicensingEnabled,
+    ensureAddSeatsEnabled,
     getTotalConfirmedUsersInGroup,
     isUserPartOfGroup,
     getUsersGroupSubscriptionDetails,
diff --git a/services/web/app/templates/plans/groups.json b/services/web/app/templates/plans/groups.json
index b5817cc684..d6d9e3747b 100644
--- a/services/web/app/templates/plans/groups.json
+++ b/services/web/app/templates/plans/groups.json
@@ -12,16 +12,20 @@
           "price_in_cents": 110000
         },
         "5": {
-          "price_in_cents": 137500
+          "price_in_cents": 137500,
+          "additional_license_legacy_price_in_cents": 32100
         },
         "10": {
-          "price_in_cents": 275000
+          "price_in_cents": 275000,
+          "additional_license_legacy_price_in_cents": 17900
         },
         "20": {
-          "price_in_cents": 550000
+          "price_in_cents": 550000,
+          "additional_license_legacy_price_in_cents": 16500
         },
         "50": {
-          "price_in_cents": 1375000
+          "price_in_cents": 1375000,
+          "additional_license_legacy_price_in_cents": 15100
         }
       },
       "BRL": {
@@ -35,16 +39,20 @@
           "price_in_cents": 239600
         },
         "5": {
-          "price_in_cents": 299500
+          "price_in_cents": 299500,
+          "additional_license_legacy_price_in_cents": 69900
         },
         "10": {
-          "price_in_cents": 599000
+          "price_in_cents": 599000,
+          "additional_license_legacy_price_in_cents": 38900
         },
         "20": {
-          "price_in_cents": 1198000
+          "price_in_cents": 1198000,
+          "additional_license_legacy_price_in_cents": 35900
         },
         "50": {
-          "price_in_cents": 2995000
+          "price_in_cents": 2995000,
+          "additional_license_legacy_price_in_cents": 32900
         }
       },
       "CAD": {
@@ -58,16 +66,20 @@
           "price_in_cents": 107600
         },
         "5": {
-          "price_in_cents": 134500
+          "price_in_cents": 134500,
+          "additional_license_legacy_price_in_cents": 31400
         },
         "10": {
-          "price_in_cents": 269000
+          "price_in_cents": 269000,
+          "additional_license_legacy_price_in_cents": 17500
         },
         "20": {
-          "price_in_cents": 538000
+          "price_in_cents": 538000,
+          "additional_license_legacy_price_in_cents": 16100
         },
         "50": {
-          "price_in_cents": 1345000
+          "price_in_cents": 1345000,
+          "additional_license_legacy_price_in_cents": 14800
         }
       },
       "CHF": {
@@ -81,16 +93,20 @@
           "price_in_cents": 95600
         },
         "5": {
-          "price_in_cents": 119500
+          "price_in_cents": 119500,
+          "additional_license_legacy_price_in_cents": 27900
         },
         "10": {
-          "price_in_cents": 239000
+          "price_in_cents": 239000,
+          "additional_license_legacy_price_in_cents": 15500
         },
         "20": {
-          "price_in_cents": 478000
+          "price_in_cents": 478000,
+          "additional_license_legacy_price_in_cents": 14300
         },
         "50": {
-          "price_in_cents": 1195000
+          "price_in_cents": 1195000,
+          "additional_license_legacy_price_in_cents": 13100
         }
       },
       "CLP": {
@@ -104,16 +120,20 @@
           "price_in_cents": 57837600
         },
         "5": {
-          "price_in_cents": 72297000
+          "price_in_cents": 72297000,
+          "additional_license_legacy_price_in_cents": 16869300
         },
         "10": {
-          "price_in_cents": 144594000
+          "price_in_cents": 144594000,
+          "additional_license_legacy_price_in_cents": 9398600
         },
         "20": {
-          "price_in_cents": 289188000
+          "price_in_cents": 289188000,
+          "additional_license_legacy_price_in_cents": 8675600
         },
         "50": {
-          "price_in_cents": 722970000
+          "price_in_cents": 722970000,
+          "additional_license_legacy_price_in_cents": 7952600
         }
       },
       "COP": {
@@ -127,16 +147,20 @@
           "price_in_cents": 189576000
         },
         "5": {
-          "price_in_cents": 236970000
+          "price_in_cents": 236970000,
+          "additional_license_legacy_price_in_cents": 55293000
         },
         "10": {
-          "price_in_cents": 473940000
+          "price_in_cents": 473940000,
+          "additional_license_legacy_price_in_cents": 30806100
         },
         "20": {
-          "price_in_cents": 947880000
+          "price_in_cents": 947880000,
+          "additional_license_legacy_price_in_cents": 28436400
         },
         "50": {
-          "price_in_cents": 2000000000
+          "price_in_cents": 2000000000,
+          "additional_license_legacy_price_in_cents": 26066700
         }
       },
       "DKK": {
@@ -150,16 +174,20 @@
           "price_in_cents": 570800
         },
         "5": {
-          "price_in_cents": 713500
+          "price_in_cents": 713500,
+          "additional_license_legacy_price_in_cents": 166500
         },
         "10": {
-          "price_in_cents": 1427000
+          "price_in_cents": 1427000,
+          "additional_license_legacy_price_in_cents": 92700
         },
         "20": {
-          "price_in_cents": 2854000
+          "price_in_cents": 2854000,
+          "additional_license_legacy_price_in_cents": 85600
         },
         "50": {
-          "price_in_cents": 7135000
+          "price_in_cents": 7135000,
+          "additional_license_legacy_price_in_cents": 78500
         }
       },
       "EUR": {
@@ -173,16 +201,20 @@
           "price_in_cents": 88400
         },
         "5": {
-          "price_in_cents": 110500
+          "price_in_cents": 110500,
+          "additional_license_legacy_price_in_cents": 25800
         },
         "10": {
-          "price_in_cents": 221000
+          "price_in_cents": 221000,
+          "additional_license_legacy_price_in_cents": 14300
         },
         "20": {
-          "price_in_cents": 442000
+          "price_in_cents": 442000,
+          "additional_license_legacy_price_in_cents": 13200
         },
         "50": {
-          "price_in_cents": 1105000
+          "price_in_cents": 1105000,
+          "additional_license_legacy_price_in_cents": 12100
         }
       },
       "GBP": {
@@ -196,16 +228,20 @@
           "price_in_cents": 76400
         },
         "5": {
-          "price_in_cents": 95500
+          "price_in_cents": 95500,
+          "additional_license_legacy_price_in_cents": 22300
         },
         "10": {
-          "price_in_cents": 191000
+          "price_in_cents": 191000,
+          "additional_license_legacy_price_in_cents": 12400
         },
         "20": {
-          "price_in_cents": 382000
+          "price_in_cents": 382000,
+          "additional_license_legacy_price_in_cents": 11400
         },
         "50": {
-          "price_in_cents": 955000
+          "price_in_cents": 955000,
+          "additional_license_legacy_price_in_cents": 10500
         }
       },
       "INR": {
@@ -219,16 +255,20 @@
           "price_in_cents": 2303600
         },
         "5": {
-          "price_in_cents": 2879500
+          "price_in_cents": 2879500,
+          "additional_license_legacy_price_in_cents": 671900
         },
         "10": {
-          "price_in_cents": 5759000
+          "price_in_cents": 5759000,
+          "additional_license_legacy_price_in_cents": 374300
         },
         "20": {
-          "price_in_cents": 11518000
+          "price_in_cents": 11518000,
+          "additional_license_legacy_price_in_cents": 345500
         },
         "50": {
-          "price_in_cents": 28795000
+          "price_in_cents": 28795000,
+          "additional_license_legacy_price_in_cents": 316700
         }
       },
       "MXN": {
@@ -242,16 +282,20 @@
           "price_in_cents": 1415600
         },
         "5": {
-          "price_in_cents": 1769500
+          "price_in_cents": 1769500,
+          "additional_license_legacy_price_in_cents": 412900
         },
         "10": {
-          "price_in_cents": 3539000
+          "price_in_cents": 3539000,
+          "additional_license_legacy_price_in_cents": 230000
         },
         "20": {
-          "price_in_cents": 7078000
+          "price_in_cents": 7078000,
+          "additional_license_legacy_price_in_cents": 212300
         },
         "50": {
-          "price_in_cents": 17695000
+          "price_in_cents": 17695000,
+          "additional_license_legacy_price_in_cents": 194600
         }
       },
       "NOK": {
@@ -265,16 +309,20 @@
           "price_in_cents": 688400
         },
         "5": {
-          "price_in_cents": 860500
+          "price_in_cents": 860500,
+          "additional_license_legacy_price_in_cents": 200800
         },
         "10": {
-          "price_in_cents": 1721000
+          "price_in_cents": 1721000,
+          "additional_license_legacy_price_in_cents": 111800
         },
         "20": {
-          "price_in_cents": 3442000
+          "price_in_cents": 3442000,
+          "additional_license_legacy_price_in_cents": 103200
         },
         "50": {
-          "price_in_cents": 8605000
+          "price_in_cents": 8605000,
+          "additional_license_legacy_price_in_cents": 94600
         }
       },
       "NZD": {
@@ -288,16 +336,20 @@
           "price_in_cents": 110000
         },
         "5": {
-          "price_in_cents": 137500
+          "price_in_cents": 137500,
+          "additional_license_legacy_price_in_cents": 32100
         },
         "10": {
-          "price_in_cents": 275000
+          "price_in_cents": 275000,
+          "additional_license_legacy_price_in_cents": 17900
         },
         "20": {
-          "price_in_cents": 550000
+          "price_in_cents": 550000,
+          "additional_license_legacy_price_in_cents": 16500
         },
         "50": {
-          "price_in_cents": 1375000
+          "price_in_cents": 1375000,
+          "additional_license_legacy_price_in_cents": 15100
         }
       },
       "PEN": {
@@ -311,16 +363,20 @@
           "price_in_cents": 230000
         },
         "5": {
-          "price_in_cents": 287500
+          "price_in_cents": 287500,
+          "additional_license_legacy_price_in_cents": 67100
         },
         "10": {
-          "price_in_cents": 575000
+          "price_in_cents": 575000,
+          "additional_license_legacy_price_in_cents": 37400
         },
         "20": {
-          "price_in_cents": 1150000
+          "price_in_cents": 1150000,
+          "additional_license_legacy_price_in_cents": 34500
         },
         "50": {
-          "price_in_cents": 2875000
+          "price_in_cents": 2875000,
+          "additional_license_legacy_price_in_cents": 31600
         }
       },
       "SEK": {
@@ -334,16 +390,20 @@
           "price_in_cents": 688400
         },
         "5": {
-          "price_in_cents": 860500
+          "price_in_cents": 860500,
+          "additional_license_legacy_price_in_cents": 200800
         },
         "10": {
-          "price_in_cents": 1721000
+          "price_in_cents": 1721000,
+          "additional_license_legacy_price_in_cents": 111800
         },
         "20": {
-          "price_in_cents": 3442000
+          "price_in_cents": 3442000,
+          "additional_license_legacy_price_in_cents": 103200
         },
         "50": {
-          "price_in_cents": 8605000
+          "price_in_cents": 8605000,
+          "additional_license_legacy_price_in_cents": 94600
         }
       },
       "SGD": {
@@ -357,16 +417,20 @@
           "price_in_cents": 124400
         },
         "5": {
-          "price_in_cents": 155500
+          "price_in_cents": 155500,
+          "additional_license_legacy_price_in_cents": 36300
         },
         "10": {
-          "price_in_cents": 311000
+          "price_in_cents": 311000,
+          "additional_license_legacy_price_in_cents": 20200
         },
         "20": {
-          "price_in_cents": 622000
+          "price_in_cents": 622000,
+          "additional_license_legacy_price_in_cents": 18600
         },
         "50": {
-          "price_in_cents": 1555000
+          "price_in_cents": 1555000,
+          "additional_license_legacy_price_in_cents": 17100
         }
       },
       "USD": {
@@ -380,16 +444,20 @@
           "price_in_cents": 95600
         },
         "5": {
-          "price_in_cents": 119500
+          "price_in_cents": 119500,
+          "additional_license_legacy_price_in_cents": 27900
         },
         "10": {
-          "price_in_cents": 239000
+          "price_in_cents": 239000,
+          "additional_license_legacy_price_in_cents": 15500
         },
         "20": {
-          "price_in_cents": 478000
+          "price_in_cents": 478000,
+          "additional_license_legacy_price_in_cents": 14300
         },
         "50": {
-          "price_in_cents": 1195000
+          "price_in_cents": 1195000,
+          "additional_license_legacy_price_in_cents": 13100
         }
       }
     },
@@ -405,16 +473,20 @@
           "price_in_cents": 57200
         },
         "5": {
-          "price_in_cents": 71500
+          "price_in_cents": 71500,
+          "additional_license_legacy_price_in_cents": 16700
         },
         "10": {
-          "price_in_cents": 143000
+          "price_in_cents": 143000,
+          "additional_license_legacy_price_in_cents": 9300
         },
         "20": {
-          "price_in_cents": 286000
+          "price_in_cents": 286000,
+          "additional_license_legacy_price_in_cents": 8600
         },
         "50": {
-          "price_in_cents": 715000
+          "price_in_cents": 715000,
+          "additional_license_legacy_price_in_cents": 7800
         }
       },
       "BRL": {
@@ -428,16 +500,20 @@
           "price_in_cents": 119600
         },
         "5": {
-          "price_in_cents": 149500
+          "price_in_cents": 149500,
+          "additional_license_legacy_price_in_cents": 34900
         },
         "10": {
-          "price_in_cents": 299000
+          "price_in_cents": 299000,
+          "additional_license_legacy_price_in_cents": 19400
         },
         "20": {
-          "price_in_cents": 598000
+          "price_in_cents": 598000,
+          "additional_license_legacy_price_in_cents": 17900
         },
         "50": {
-          "price_in_cents": 1495000
+          "price_in_cents": 1495000,
+          "additional_license_legacy_price_in_cents": 16400
         }
       },
       "CAD": {
@@ -451,16 +527,20 @@
           "price_in_cents": 54800
         },
         "5": {
-          "price_in_cents": 68500
+          "price_in_cents": 68500,
+          "additional_license_legacy_price_in_cents": 16000
         },
         "10": {
-          "price_in_cents": 137000
+          "price_in_cents": 137000,
+          "additional_license_legacy_price_in_cents": 8900
         },
         "20": {
-          "price_in_cents": 274000
+          "price_in_cents": 274000,
+          "additional_license_legacy_price_in_cents": 8200
         },
         "50": {
-          "price_in_cents": 685000
+          "price_in_cents": 685000,
+          "additional_license_legacy_price_in_cents": 7500
         }
       },
       "CHF": {
@@ -474,16 +554,20 @@
           "price_in_cents": 47600
         },
         "5": {
-          "price_in_cents": 59500
+          "price_in_cents": 59500,
+          "additional_license_legacy_price_in_cents": 13900
         },
         "10": {
-          "price_in_cents": 119000
+          "price_in_cents": 119000,
+          "additional_license_legacy_price_in_cents": 7700
         },
         "20": {
-          "price_in_cents": 238000
+          "price_in_cents": 238000,
+          "additional_license_legacy_price_in_cents": 7100
         },
         "50": {
-          "price_in_cents": 595000
+          "price_in_cents": 595000,
+          "additional_license_legacy_price_in_cents": 6500
         }
       },
       "CLP": {
@@ -497,16 +581,20 @@
           "price_in_cents": 26637600
         },
         "5": {
-          "price_in_cents": 33297000
+          "price_in_cents": 33297000,
+          "additional_license_legacy_price_in_cents": 7769300
         },
         "10": {
-          "price_in_cents": 66594000
+          "price_in_cents": 66594000,
+          "additional_license_legacy_price_in_cents": 4328600
         },
         "20": {
-          "price_in_cents": 133188000
+          "price_in_cents": 133188000,
+          "additional_license_legacy_price_in_cents": 3995600
         },
         "50": {
-          "price_in_cents": 332970000
+          "price_in_cents": 332970000,
+          "additional_license_legacy_price_in_cents": 3662600
         }
       },
       "COP": {
@@ -520,16 +608,20 @@
           "price_in_cents": 93576000
         },
         "5": {
-          "price_in_cents": 116970000
+          "price_in_cents": 116970000,
+          "additional_license_legacy_price_in_cents": 27293000
         },
         "10": {
-          "price_in_cents": 233940000
+          "price_in_cents": 233940000,
+          "additional_license_legacy_price_in_cents": 15206100
         },
         "20": {
-          "price_in_cents": 467880000
+          "price_in_cents": 467880000,
+          "additional_license_legacy_price_in_cents": 14036400
         },
         "50": {
-          "price_in_cents": 1169700000
+          "price_in_cents": 1169700000,
+          "additional_license_legacy_price_in_cents": 12866700
         }
       },
       "DKK": {
@@ -543,16 +635,20 @@
           "price_in_cents": 287600
         },
         "5": {
-          "price_in_cents": 359500
+          "price_in_cents": 359500,
+          "additional_license_legacy_price_in_cents": 83900
         },
         "10": {
-          "price_in_cents": 719000
+          "price_in_cents": 719000,
+          "additional_license_legacy_price_in_cents": 46700
         },
         "20": {
-          "price_in_cents": 1438000
+          "price_in_cents": 1438000,
+          "additional_license_legacy_price_in_cents": 43100
         },
         "50": {
-          "price_in_cents": 3595000
+          "price_in_cents": 3595000,
+          "additional_license_legacy_price_in_cents": 39500
         }
       },
       "EUR": {
@@ -566,16 +662,20 @@
           "price_in_cents": 42800
         },
         "5": {
-          "price_in_cents": 53500
+          "price_in_cents": 53500,
+          "additional_license_legacy_price_in_cents": 12500
         },
         "10": {
-          "price_in_cents": 107000
+          "price_in_cents": 107000,
+          "additional_license_legacy_price_in_cents": 6900
         },
         "20": {
-          "price_in_cents": 214000
+          "price_in_cents": 214000,
+          "additional_license_legacy_price_in_cents": 6400
         },
         "50": {
-          "price_in_cents": 535000
+          "price_in_cents": 535000,
+          "additional_license_legacy_price_in_cents": 5900
         }
       },
       "GBP": {
@@ -589,16 +689,20 @@
           "price_in_cents": 38000
         },
         "5": {
-          "price_in_cents": 47500
+          "price_in_cents": 47500,
+          "additional_license_legacy_price_in_cents": 11100
         },
         "10": {
-          "price_in_cents": 95000
+          "price_in_cents": 95000,
+          "additional_license_legacy_price_in_cents": 6200
         },
         "20": {
-          "price_in_cents": 190000
+          "price_in_cents": 190000,
+          "additional_license_legacy_price_in_cents": 5700
         },
         "50": {
-          "price_in_cents": 475000
+          "price_in_cents": 475000,
+          "additional_license_legacy_price_in_cents": 5200
         }
       },
       "INR": {
@@ -612,16 +716,20 @@
           "price_in_cents": 1103600
         },
         "5": {
-          "price_in_cents": 1379500
+          "price_in_cents": 1379500,
+          "additional_license_legacy_price_in_cents": 321900
         },
         "10": {
-          "price_in_cents": 2759000
+          "price_in_cents": 2759000,
+          "additional_license_legacy_price_in_cents": 179300
         },
         "20": {
-          "price_in_cents": 5518000
+          "price_in_cents": 5518000,
+          "additional_license_legacy_price_in_cents": 165500
         },
         "50": {
-          "price_in_cents": 13795000
+          "price_in_cents": 13795000,
+          "additional_license_legacy_price_in_cents": 151700
         }
       },
       "MXN": {
@@ -635,16 +743,20 @@
           "price_in_cents": 695600
         },
         "5": {
-          "price_in_cents": 869500
+          "price_in_cents": 869500,
+          "additional_license_legacy_price_in_cents": 202900
         },
         "10": {
-          "price_in_cents": 1739000
+          "price_in_cents": 1739000,
+          "additional_license_legacy_price_in_cents": 113000
         },
         "20": {
-          "price_in_cents": 3478000
+          "price_in_cents": 3478000,
+          "additional_license_legacy_price_in_cents": 104300
         },
         "50": {
-          "price_in_cents": 8695000
+          "price_in_cents": 8695000,
+          "additional_license_legacy_price_in_cents": 95600
         }
       },
       "NOK": {
@@ -658,16 +770,20 @@
           "price_in_cents": 347600
         },
         "5": {
-          "price_in_cents": 434500
+          "price_in_cents": 434500,
+          "additional_license_legacy_price_in_cents": 101400
         },
         "10": {
-          "price_in_cents": 869000
+          "price_in_cents": 869000,
+          "additional_license_legacy_price_in_cents": 56500
         },
         "20": {
-          "price_in_cents": 1738000
+          "price_in_cents": 1738000,
+          "additional_license_legacy_price_in_cents": 52100
         },
         "50": {
-          "price_in_cents": 4345000
+          "price_in_cents": 4345000,
+          "additional_license_legacy_price_in_cents": 47800
         }
       },
       "NZD": {
@@ -681,16 +797,20 @@
           "price_in_cents": 57200
         },
         "5": {
-          "price_in_cents": 71500
+          "price_in_cents": 71500,
+          "additional_license_legacy_price_in_cents": 16700
         },
         "10": {
-          "price_in_cents": 143000
+          "price_in_cents": 143000,
+          "additional_license_legacy_price_in_cents": 9300
         },
         "20": {
-          "price_in_cents": 286000
+          "price_in_cents": 286000,
+          "additional_license_legacy_price_in_cents": 8600
         },
         "50": {
-          "price_in_cents": 715000
+          "price_in_cents": 715000,
+          "additional_license_legacy_price_in_cents": 7800
         }
       },
       "PEN": {
@@ -704,16 +824,20 @@
           "price_in_cents": 110000
         },
         "5": {
-          "price_in_cents": 137500
+          "price_in_cents": 137500,
+          "additional_license_legacy_price_in_cents": 32100
         },
         "10": {
-          "price_in_cents": 275000
+          "price_in_cents": 275000,
+          "additional_license_legacy_price_in_cents": 17900
         },
         "20": {
-          "price_in_cents": 550000
+          "price_in_cents": 550000,
+          "additional_license_legacy_price_in_cents": 16500
         },
         "50": {
-          "price_in_cents": 1375000
+          "price_in_cents": 1375000,
+          "additional_license_legacy_price_in_cents": 15100
         }
       },
       "SEK": {
@@ -727,16 +851,20 @@
           "price_in_cents": 347600
         },
         "5": {
-          "price_in_cents": 434500
+          "price_in_cents": 434500,
+          "additional_license_legacy_price_in_cents": 101400
         },
         "10": {
-          "price_in_cents": 869000
+          "price_in_cents": 869000,
+          "additional_license_legacy_price_in_cents": 56500
         },
         "20": {
-          "price_in_cents": 1738000
+          "price_in_cents": 1738000,
+          "additional_license_legacy_price_in_cents": 52100
         },
         "50": {
-          "price_in_cents": 4345000
+          "price_in_cents": 4345000,
+          "additional_license_legacy_price_in_cents": 47800
         }
       },
       "SGD": {
@@ -750,16 +878,20 @@
           "price_in_cents": 62000
         },
         "5": {
-          "price_in_cents": 77500
+          "price_in_cents": 77500,
+          "additional_license_legacy_price_in_cents": 18100
         },
         "10": {
-          "price_in_cents": 155000
+          "price_in_cents": 155000,
+          "additional_license_legacy_price_in_cents": 10100
         },
         "20": {
-          "price_in_cents": 310000
+          "price_in_cents": 310000,
+          "additional_license_legacy_price_in_cents": 9300
         },
         "50": {
-          "price_in_cents": 775000
+          "price_in_cents": 775000,
+          "additional_license_legacy_price_in_cents": 8500
         }
       },
       "USD": {
@@ -773,16 +905,20 @@
           "price_in_cents": 47600
         },
         "5": {
-          "price_in_cents": 59500
+          "price_in_cents": 59500,
+          "additional_license_legacy_price_in_cents": 13900
         },
         "10": {
-          "price_in_cents": 119000
+          "price_in_cents": 119000,
+          "additional_license_legacy_price_in_cents": 7700
         },
         "20": {
-          "price_in_cents": 238000
+          "price_in_cents": 238000,
+          "additional_license_legacy_price_in_cents": 7100
         },
         "50": {
-          "price_in_cents": 595000
+          "price_in_cents": 595000,
+          "additional_license_legacy_price_in_cents": 6500
         }
       }
     }
@@ -800,16 +936,20 @@
           "price_in_cents": 183600
         },
         "5": {
-          "price_in_cents": 229500
+          "price_in_cents": 229500,
+          "additional_license_legacy_price_in_cents": 32100
         },
         "10": {
-          "price_in_cents": 459000
+          "price_in_cents": 459000,
+          "additional_license_legacy_price_in_cents": 29800
         },
         "20": {
-          "price_in_cents": 918000
+          "price_in_cents": 918000,
+          "additional_license_legacy_price_in_cents": 27500
         },
         "50": {
-          "price_in_cents": 2295000
+          "price_in_cents": 2295000,
+          "additional_license_legacy_price_in_cents": 25200
         }
       },
       "BRL": {
@@ -823,16 +963,20 @@
           "price_in_cents": 399600
         },
         "5": {
-          "price_in_cents": 499500
+          "price_in_cents": 499500,
+          "additional_license_legacy_price_in_cents": 69900
         },
         "10": {
-          "price_in_cents": 999000
+          "price_in_cents": 999000,
+          "additional_license_legacy_price_in_cents": 64900
         },
         "20": {
-          "price_in_cents": 1998000
+          "price_in_cents": 1998000,
+          "additional_license_legacy_price_in_cents": 59900
         },
         "50": {
-          "price_in_cents": 4995000
+          "price_in_cents": 4995000,
+          "additional_license_legacy_price_in_cents": 54900
         }
       },
       "CAD": {
@@ -846,16 +990,20 @@
           "price_in_cents": 179600
         },
         "5": {
-          "price_in_cents": 224500
+          "price_in_cents": 224500,
+          "additional_license_legacy_price_in_cents": 31400
         },
         "10": {
-          "price_in_cents": 449000
+          "price_in_cents": 449000,
+          "additional_license_legacy_price_in_cents": 29100
         },
         "20": {
-          "price_in_cents": 898000
+          "price_in_cents": 898000,
+          "additional_license_legacy_price_in_cents": 26900
         },
         "50": {
-          "price_in_cents": 2245000
+          "price_in_cents": 2245000,
+          "additional_license_legacy_price_in_cents": 24600
         }
       },
       "CHF": {
@@ -869,16 +1017,20 @@
           "price_in_cents": 159600
         },
         "5": {
-          "price_in_cents": 199500
+          "price_in_cents": 199500,
+          "additional_license_legacy_price_in_cents": 49900
         },
         "10": {
-          "price_in_cents": 399000
+          "price_in_cents": 399000,
+          "additional_license_legacy_price_in_cents": 25900
         },
         "20": {
-          "price_in_cents": 798000
+          "price_in_cents": 798000,
+          "additional_license_legacy_price_in_cents": 23900
         },
         "50": {
-          "price_in_cents": 1995000
+          "price_in_cents": 1995000,
+          "additional_license_legacy_price_in_cents": 21900
         }
       },
       "CLP": {
@@ -892,16 +1044,20 @@
           "price_in_cents": 96396000
         },
         "5": {
-          "price_in_cents": 120495000
+          "price_in_cents": 120495000,
+          "additional_license_legacy_price_in_cents": 16869300
         },
         "10": {
-          "price_in_cents": 240990000
+          "price_in_cents": 240990000,
+          "additional_license_legacy_price_in_cents": 15664300
         },
         "20": {
-          "price_in_cents": 481980000
+          "price_in_cents": 481980000,
+          "additional_license_legacy_price_in_cents": 14459400
         },
         "50": {
-          "price_in_cents": 1204950000
+          "price_in_cents": 1204950000,
+          "additional_license_legacy_price_in_cents": 13254400
         }
       },
       "COP": {
@@ -915,16 +1071,20 @@
           "price_in_cents": 315960000
         },
         "5": {
-          "price_in_cents": 394950000
+          "price_in_cents": 394950000,
+          "additional_license_legacy_price_in_cents": 55293000
         },
         "10": {
-          "price_in_cents": 789900000
+          "price_in_cents": 789900000,
+          "additional_license_legacy_price_in_cents": 51343500
         },
         "20": {
-          "price_in_cents": 1579800000
+          "price_in_cents": 1579800000,
+          "additional_license_legacy_price_in_cents": 47394000
         },
         "50": {
-          "price_in_cents": 2000000000
+          "price_in_cents": 2000000000,
+          "additional_license_legacy_price_in_cents": 40000000
         }
       },
       "DKK": {
@@ -938,16 +1098,20 @@
           "price_in_cents": 951600
         },
         "5": {
-          "price_in_cents": 1189500
+          "price_in_cents": 1189500,
+          "additional_license_legacy_price_in_cents": 166500
         },
         "10": {
-          "price_in_cents": 2379000
+          "price_in_cents": 2379000,
+          "additional_license_legacy_price_in_cents": 154600
         },
         "20": {
-          "price_in_cents": 4758000
+          "price_in_cents": 4758000,
+          "additional_license_legacy_price_in_cents": 142700
         },
         "50": {
-          "price_in_cents": 11895000
+          "price_in_cents": 11895000,
+          "additional_license_legacy_price_in_cents": 130800
         }
       },
       "EUR": {
@@ -961,16 +1125,20 @@
           "price_in_cents": 147600
         },
         "5": {
-          "price_in_cents": 184500
+          "price_in_cents": 184500,
+          "additional_license_legacy_price_in_cents": 25800
         },
         "10": {
-          "price_in_cents": 369000
+          "price_in_cents": 369000,
+          "additional_license_legacy_price_in_cents": 23900
         },
         "20": {
-          "price_in_cents": 738000
+          "price_in_cents": 738000,
+          "additional_license_legacy_price_in_cents": 22100
         },
         "50": {
-          "price_in_cents": 1845000
+          "price_in_cents": 1845000,
+          "additional_license_legacy_price_in_cents": 20200
         }
       },
       "GBP": {
@@ -984,16 +1152,20 @@
           "price_in_cents": 127600
         },
         "5": {
-          "price_in_cents": 159500
+          "price_in_cents": 159500,
+          "additional_license_legacy_price_in_cents": 22300
         },
         "10": {
-          "price_in_cents": 319000
+          "price_in_cents": 319000,
+          "additional_license_legacy_price_in_cents": 20700
         },
         "20": {
-          "price_in_cents": 638000
+          "price_in_cents": 638000,
+          "additional_license_legacy_price_in_cents": 19100
         },
         "50": {
-          "price_in_cents": 1595000
+          "price_in_cents": 1595000,
+          "additional_license_legacy_price_in_cents": 17500
         }
       },
       "INR": {
@@ -1007,16 +1179,20 @@
           "price_in_cents": 3839600
         },
         "5": {
-          "price_in_cents": 4799500
+          "price_in_cents": 4799500,
+          "additional_license_legacy_price_in_cents": 671900
         },
         "10": {
-          "price_in_cents": 9599000
+          "price_in_cents": 9599000,
+          "additional_license_legacy_price_in_cents": 623900
         },
         "20": {
-          "price_in_cents": 19198000
+          "price_in_cents": 19198000,
+          "additional_license_legacy_price_in_cents": 575900
         },
         "50": {
-          "price_in_cents": 47995000
+          "price_in_cents": 47995000,
+          "additional_license_legacy_price_in_cents": 527900
         }
       },
       "MXN": {
@@ -1030,16 +1206,20 @@
           "price_in_cents": 2359600
         },
         "5": {
-          "price_in_cents": 2949500
+          "price_in_cents": 2949500,
+          "additional_license_legacy_price_in_cents": 412900
         },
         "10": {
-          "price_in_cents": 5899000
+          "price_in_cents": 5899000,
+          "additional_license_legacy_price_in_cents": 383400
         },
         "20": {
-          "price_in_cents": 11798000
+          "price_in_cents": 11798000,
+          "additional_license_legacy_price_in_cents": 353900
         },
         "50": {
-          "price_in_cents": 29495000
+          "price_in_cents": 29495000,
+          "additional_license_legacy_price_in_cents": 324400
         }
       },
       "NOK": {
@@ -1053,16 +1233,20 @@
           "price_in_cents": 1147600
         },
         "5": {
-          "price_in_cents": 1434500
+          "price_in_cents": 1434500,
+          "additional_license_legacy_price_in_cents": 200800
         },
         "10": {
-          "price_in_cents": 2869000
+          "price_in_cents": 2869000,
+          "additional_license_legacy_price_in_cents": 186400
         },
         "20": {
-          "price_in_cents": 5738000
+          "price_in_cents": 5738000,
+          "additional_license_legacy_price_in_cents": 172100
         },
         "50": {
-          "price_in_cents": 14345000
+          "price_in_cents": 14345000,
+          "additional_license_legacy_price_in_cents": 157700
         }
       },
       "NZD": {
@@ -1076,16 +1260,20 @@
           "price_in_cents": 183600
         },
         "5": {
-          "price_in_cents": 229500
+          "price_in_cents": 229500,
+          "additional_license_legacy_price_in_cents": 32100
         },
         "10": {
-          "price_in_cents": 459000
+          "price_in_cents": 459000,
+          "additional_license_legacy_price_in_cents": 29800
         },
         "20": {
-          "price_in_cents": 918000
+          "price_in_cents": 918000,
+          "additional_license_legacy_price_in_cents": 27500
         },
         "50": {
-          "price_in_cents": 2295000
+          "price_in_cents": 2295000,
+          "additional_license_legacy_price_in_cents": 25200
         }
       },
       "PEN": {
@@ -1099,16 +1287,20 @@
           "price_in_cents": 383600
         },
         "5": {
-          "price_in_cents": 479500
+          "price_in_cents": 479500,
+          "additional_license_legacy_price_in_cents": 67100
         },
         "10": {
-          "price_in_cents": 959000
+          "price_in_cents": 959000,
+          "additional_license_legacy_price_in_cents": 62300
         },
         "20": {
-          "price_in_cents": 1918000
+          "price_in_cents": 1918000,
+          "additional_license_legacy_price_in_cents": 57500
         },
         "50": {
-          "price_in_cents": 4795000
+          "price_in_cents": 4795000,
+          "additional_license_legacy_price_in_cents": 52700
         }
       },
       "SEK": {
@@ -1122,16 +1314,20 @@
           "price_in_cents": 1147600
         },
         "5": {
-          "price_in_cents": 1434500
+          "price_in_cents": 1434500,
+          "additional_license_legacy_price_in_cents": 200800
         },
         "10": {
-          "price_in_cents": 2869000
+          "price_in_cents": 2869000,
+          "additional_license_legacy_price_in_cents": 186400
         },
         "20": {
-          "price_in_cents": 5738000
+          "price_in_cents": 5738000,
+          "additional_license_legacy_price_in_cents": 172100
         },
         "50": {
-          "price_in_cents": 14345000
+          "price_in_cents": 14345000,
+          "additional_license_legacy_price_in_cents": 157700
         }
       },
       "SGD": {
@@ -1145,16 +1341,20 @@
           "price_in_cents": 207600
         },
         "5": {
-          "price_in_cents": 259500
+          "price_in_cents": 259500,
+          "additional_license_legacy_price_in_cents": 36300
         },
         "10": {
-          "price_in_cents": 519000
+          "price_in_cents": 519000,
+          "additional_license_legacy_price_in_cents": 33700
         },
         "20": {
-          "price_in_cents": 1038000
+          "price_in_cents": 1038000,
+          "additional_license_legacy_price_in_cents": 31100
         },
         "50": {
-          "price_in_cents": 2595000
+          "price_in_cents": 2595000,
+          "additional_license_legacy_price_in_cents": 28500
         }
       },
       "USD": {
@@ -1168,16 +1368,20 @@
           "price_in_cents": 159600
         },
         "5": {
-          "price_in_cents": 199500
+          "price_in_cents": 199500,
+          "additional_license_legacy_price_in_cents": 27900
         },
         "10": {
-          "price_in_cents": 399000
+          "price_in_cents": 399000,
+          "additional_license_legacy_price_in_cents": 25900
         },
         "20": {
-          "price_in_cents": 798000
+          "price_in_cents": 798000,
+          "additional_license_legacy_price_in_cents": 23900
         },
         "50": {
-          "price_in_cents": 1995000
+          "price_in_cents": 1995000,
+          "additional_license_legacy_price_in_cents": 21900
         }
       }
     },
@@ -1193,16 +1397,20 @@
           "price_in_cents": 95600
         },
         "5": {
-          "price_in_cents": 119500
+          "price_in_cents": 119500,
+          "additional_license_legacy_price_in_cents": 16700
         },
         "10": {
-          "price_in_cents": 239000
+          "price_in_cents": 239000,
+          "additional_license_legacy_price_in_cents": 15500
         },
         "20": {
-          "price_in_cents": 478000
+          "price_in_cents": 478000,
+          "additional_license_legacy_price_in_cents": 14300
         },
         "50": {
-          "price_in_cents": 1195000
+          "price_in_cents": 1195000,
+          "additional_license_legacy_price_in_cents": 13100
         }
       },
       "BRL": {
@@ -1216,16 +1424,20 @@
           "price_in_cents": 199600
         },
         "5": {
-          "price_in_cents": 249500
+          "price_in_cents": 249500,
+          "additional_license_legacy_price_in_cents": 34900
         },
         "10": {
-          "price_in_cents": 499000
+          "price_in_cents": 499000,
+          "additional_license_legacy_price_in_cents": 32400
         },
         "20": {
-          "price_in_cents": 998000
+          "price_in_cents": 998000,
+          "additional_license_legacy_price_in_cents": 29900
         },
         "50": {
-          "price_in_cents": 2495000
+          "price_in_cents": 2495000,
+          "additional_license_legacy_price_in_cents": 27400
         }
       },
       "CAD": {
@@ -1239,16 +1451,20 @@
           "price_in_cents": 91600
         },
         "5": {
-          "price_in_cents": 114500
+          "price_in_cents": 114500,
+          "additional_license_legacy_price_in_cents": 16000
         },
         "10": {
-          "price_in_cents": 229000
+          "price_in_cents": 229000,
+          "additional_license_legacy_price_in_cents": 14800
         },
         "20": {
-          "price_in_cents": 458000
+          "price_in_cents": 458000,
+          "additional_license_legacy_price_in_cents": 13700
         },
         "50": {
-          "price_in_cents": 1145000
+          "price_in_cents": 1145000,
+          "additional_license_legacy_price_in_cents": 12500
         }
       },
       "CHF": {
@@ -1262,16 +1478,20 @@
           "price_in_cents": 79600
         },
         "5": {
-          "price_in_cents": 99500
+          "price_in_cents": 99500,
+          "additional_license_legacy_price_in_cents": 13900
         },
         "10": {
-          "price_in_cents": 199000
+          "price_in_cents": 199000,
+          "additional_license_legacy_price_in_cents": 12900
         },
         "20": {
-          "price_in_cents": 398000
+          "price_in_cents": 398000,
+          "additional_license_legacy_price_in_cents": 11900
         },
         "50": {
-          "price_in_cents": 995000
+          "price_in_cents": 995000,
+          "additional_license_legacy_price_in_cents": 10900
         }
       },
       "CLP": {
@@ -1285,16 +1505,20 @@
           "price_in_cents": 44396000
         },
         "5": {
-          "price_in_cents": 55495000
+          "price_in_cents": 55495000,
+          "additional_license_legacy_price_in_cents": 7769300
         },
         "10": {
-          "price_in_cents": 110990000
+          "price_in_cents": 110990000,
+          "additional_license_legacy_price_in_cents": 7214300
         },
         "20": {
-          "price_in_cents": 221980000
+          "price_in_cents": 221980000,
+          "additional_license_legacy_price_in_cents": 6659400
         },
         "50": {
-          "price_in_cents": 554950000
+          "price_in_cents": 554950000,
+          "additional_license_legacy_price_in_cents": 6104400
         }
       },
       "COP": {
@@ -1308,16 +1532,20 @@
           "price_in_cents": 155960000
         },
         "5": {
-          "price_in_cents": 194950000
+          "price_in_cents": 194950000,
+          "additional_license_legacy_price_in_cents": 27293000
         },
         "10": {
-          "price_in_cents": 389900000
+          "price_in_cents": 389900000,
+          "additional_license_legacy_price_in_cents": 25343500
         },
         "20": {
-          "price_in_cents": 779800000
+          "price_in_cents": 779800000,
+          "additional_license_legacy_price_in_cents": 23394000
         },
         "50": {
-          "price_in_cents": 1949500000
+          "price_in_cents": 1949500000,
+          "additional_license_legacy_price_in_cents": 21444500
         }
       },
       "DKK": {
@@ -1331,16 +1559,20 @@
           "price_in_cents": 479600
         },
         "5": {
-          "price_in_cents": 599500
+          "price_in_cents": 599500,
+          "additional_license_legacy_price_in_cents": 83900
         },
         "10": {
-          "price_in_cents": 1199000
+          "price_in_cents": 1199000,
+          "additional_license_legacy_price_in_cents": 77900
         },
         "20": {
-          "price_in_cents": 2398000
+          "price_in_cents": 2398000,
+          "additional_license_legacy_price_in_cents": 71900
         },
         "50": {
-          "price_in_cents": 5995000
+          "price_in_cents": 5995000,
+          "additional_license_legacy_price_in_cents": 65900
         }
       },
       "EUR": {
@@ -1354,16 +1586,20 @@
           "price_in_cents": 71600
         },
         "5": {
-          "price_in_cents": 89500
+          "price_in_cents": 89500,
+          "additional_license_legacy_price_in_cents": 12500
         },
         "10": {
-          "price_in_cents": 179000
+          "price_in_cents": 179000,
+          "additional_license_legacy_price_in_cents": 11600
         },
         "20": {
-          "price_in_cents": 358000
+          "price_in_cents": 358000,
+          "additional_license_legacy_price_in_cents": 10700
         },
         "50": {
-          "price_in_cents": 895000
+          "price_in_cents": 895000,
+          "additional_license_legacy_price_in_cents": 9800
         }
       },
       "GBP": {
@@ -1377,16 +1613,20 @@
           "price_in_cents": 63600
         },
         "5": {
-          "price_in_cents": 79500
+          "price_in_cents": 79500,
+          "additional_license_legacy_price_in_cents": 11100
         },
         "10": {
-          "price_in_cents": 159000
+          "price_in_cents": 159000,
+          "additional_license_legacy_price_in_cents": 10300
         },
         "20": {
-          "price_in_cents": 318000
+          "price_in_cents": 318000,
+          "additional_license_legacy_price_in_cents": 9500
         },
         "50": {
-          "price_in_cents": 795000
+          "price_in_cents": 795000,
+          "additional_license_legacy_price_in_cents": 8700
         }
       },
       "INR": {
@@ -1400,16 +1640,20 @@
           "price_in_cents": 1839600
         },
         "5": {
-          "price_in_cents": 2299500
+          "price_in_cents": 2299500,
+          "additional_license_legacy_price_in_cents": 321900
         },
         "10": {
-          "price_in_cents": 4599000
+          "price_in_cents": 4599000,
+          "additional_license_legacy_price_in_cents": 298900
         },
         "20": {
-          "price_in_cents": 9198000
+          "price_in_cents": 9198000,
+          "additional_license_legacy_price_in_cents": 275900
         },
         "50": {
-          "price_in_cents": 22995000
+          "price_in_cents": 22995000,
+          "additional_license_legacy_price_in_cents": 252900
         }
       },
       "MXN": {
@@ -1423,16 +1667,20 @@
           "price_in_cents": 1159600
         },
         "5": {
-          "price_in_cents": 1449500
+          "price_in_cents": 1449500,
+          "additional_license_legacy_price_in_cents": 202900
         },
         "10": {
-          "price_in_cents": 2899000
+          "price_in_cents": 2899000,
+          "additional_license_legacy_price_in_cents": 188400
         },
         "20": {
-          "price_in_cents": 5798000
+          "price_in_cents": 5798000,
+          "additional_license_legacy_price_in_cents": 173900
         },
         "50": {
-          "price_in_cents": 14495000
+          "price_in_cents": 14495000,
+          "additional_license_legacy_price_in_cents": 159400
         }
       },
       "NOK": {
@@ -1446,16 +1694,20 @@
           "price_in_cents": 579600
         },
         "5": {
-          "price_in_cents": 724500
+          "price_in_cents": 724500,
+          "additional_license_legacy_price_in_cents": 101400
         },
         "10": {
-          "price_in_cents": 1449000
+          "price_in_cents": 1449000,
+          "additional_license_legacy_price_in_cents": 94100
         },
         "20": {
-          "price_in_cents": 2898000
+          "price_in_cents": 2898000,
+          "additional_license_legacy_price_in_cents": 86900
         },
         "50": {
-          "price_in_cents": 7245000
+          "price_in_cents": 7245000,
+          "additional_license_legacy_price_in_cents": 79600
         }
       },
       "NZD": {
@@ -1469,16 +1721,20 @@
           "price_in_cents": 95600
         },
         "5": {
-          "price_in_cents": 119500
+          "price_in_cents": 119500,
+          "additional_license_legacy_price_in_cents": 16700
         },
         "10": {
-          "price_in_cents": 239000
+          "price_in_cents": 239000,
+          "additional_license_legacy_price_in_cents": 15500
         },
         "20": {
-          "price_in_cents": 478000
+          "price_in_cents": 478000,
+          "additional_license_legacy_price_in_cents": 14300
         },
         "50": {
-          "price_in_cents": 1195000
+          "price_in_cents": 1195000,
+          "additional_license_legacy_price_in_cents": 13100
         }
       },
       "PEN": {
@@ -1492,16 +1748,20 @@
           "price_in_cents": 183600
         },
         "5": {
-          "price_in_cents": 229500
+          "price_in_cents": 229500,
+          "additional_license_legacy_price_in_cents": 32100
         },
         "10": {
-          "price_in_cents": 459000
+          "price_in_cents": 459000,
+          "additional_license_legacy_price_in_cents": 29800
         },
         "20": {
-          "price_in_cents": 918000
+          "price_in_cents": 918000,
+          "additional_license_legacy_price_in_cents": 27500
         },
         "50": {
-          "price_in_cents": 2295000
+          "price_in_cents": 2295000,
+          "additional_license_legacy_price_in_cents": 25200
         }
       },
       "SEK": {
@@ -1515,16 +1775,20 @@
           "price_in_cents": 579600
         },
         "5": {
-          "price_in_cents": 724500
+          "price_in_cents": 724500,
+          "additional_license_legacy_price_in_cents": 101400
         },
         "10": {
-          "price_in_cents": 1449000
+          "price_in_cents": 1449000,
+          "additional_license_legacy_price_in_cents": 94100
         },
         "20": {
-          "price_in_cents": 2898000
+          "price_in_cents": 2898000,
+          "additional_license_legacy_price_in_cents": 86900
         },
         "50": {
-          "price_in_cents": 7245000
+          "price_in_cents": 7245000,
+          "additional_license_legacy_price_in_cents": 79600
         }
       },
       "SGD": {
@@ -1538,16 +1802,20 @@
           "price_in_cents": 103600
         },
         "5": {
-          "price_in_cents": 129500
+          "price_in_cents": 129500,
+          "additional_license_legacy_price_in_cents": 18100
         },
         "10": {
-          "price_in_cents": 259000
+          "price_in_cents": 259000,
+          "additional_license_legacy_price_in_cents": 16800
         },
         "20": {
-          "price_in_cents": 518000
+          "price_in_cents": 518000,
+          "additional_license_legacy_price_in_cents": 15500
         },
         "50": {
-          "price_in_cents": 1295000
+          "price_in_cents": 1295000,
+          "additional_license_legacy_price_in_cents": 14200
         }
       },
       "USD": {
@@ -1561,16 +1829,20 @@
           "price_in_cents": 79600
         },
         "5": {
-          "price_in_cents": 99500
+          "price_in_cents": 99500,
+          "additional_license_legacy_price_in_cents": 13900
         },
         "10": {
-          "price_in_cents": 199000
+          "price_in_cents": 199000,
+          "additional_license_legacy_price_in_cents": 12900
         },
         "20": {
-          "price_in_cents": 398000
+          "price_in_cents": 398000,
+          "additional_license_legacy_price_in_cents": 11900
         },
         "50": {
-          "price_in_cents": 995000
+          "price_in_cents": 995000,
+          "additional_license_legacy_price_in_cents": 10900
         }
       }
     }
diff --git a/services/web/scripts/plan-prices/additional-license-add-on-legacy-prices.json b/services/web/scripts/plan-prices/additional-license-add-on-legacy-prices.json
new file mode 100644
index 0000000000..8ab0f87355
--- /dev/null
+++ b/services/web/scripts/plan-prices/additional-license-add-on-legacy-prices.json
@@ -0,0 +1,318 @@
+{
+  "educational": {
+    "professional": {
+      "5": {
+        "AUD": 321,
+        "BRL": 699,
+        "CAD": 314,
+        "CHF": 279,
+        "CLP": 168693,
+        "COP": 552930,
+        "DKK": 1665,
+        "EUR": 258,
+        "GBP": 223,
+        "INR": 6719,
+        "MXN": 4129,
+        "NOK": 2008,
+        "NZD": 321,
+        "PEN": 671,
+        "SEK": 2008,
+        "SGD": 363,
+        "USD": 279
+      },
+      "10": {
+        "AUD": 179,
+        "BRL": 389,
+        "CAD": 175,
+        "CHF": 155,
+        "CLP": 93986,
+        "COP": 308061,
+        "DKK": 927,
+        "EUR": 143,
+        "GBP": 124,
+        "INR": 3743,
+        "MXN": 2300,
+        "NOK": 1118,
+        "NZD": 179,
+        "PEN": 374,
+        "SEK": 1118,
+        "SGD": 202,
+        "USD": 155
+      },
+      "20": {
+        "AUD": 165,
+        "BRL": 359,
+        "CAD": 161,
+        "CHF": 143,
+        "CLP": 86756,
+        "COP": 284364,
+        "DKK": 856,
+        "EUR": 132,
+        "GBP": 114,
+        "INR": 3455,
+        "MXN": 2123,
+        "NOK": 1032,
+        "NZD": 165,
+        "PEN": 345,
+        "SEK": 1032,
+        "SGD": 186,
+        "USD": 143
+      },
+      "50": {
+        "AUD": 151,
+        "BRL": 329,
+        "CAD": 148,
+        "CHF": 131,
+        "CLP": 79526,
+        "COP": 260667,
+        "DKK": 785,
+        "EUR": 121,
+        "GBP": 105,
+        "INR": 3167,
+        "MXN": 1946,
+        "NOK": 946,
+        "NZD": 151,
+        "PEN": 316,
+        "SEK": 946,
+        "SGD": 171,
+        "USD": 131
+      }
+    },
+    "collaborator": {
+      "5": {
+        "AUD": 167,
+        "BRL": 349,
+        "CAD": 160,
+        "CHF": 139,
+        "CLP": 77693,
+        "COP": 272930,
+        "DKK": 839,
+        "EUR": 125,
+        "GBP": 111,
+        "INR": 3219,
+        "MXN": 2029,
+        "NOK": 1014,
+        "NZD": 167,
+        "PEN": 321,
+        "SEK": 1014,
+        "SGD": 181,
+        "USD": 139
+      },
+      "10": {
+        "AUD": 93,
+        "BRL": 194,
+        "CAD": 89,
+        "CHF": 77,
+        "CLP": 43286,
+        "COP": 152061,
+        "DKK": 467,
+        "EUR": 69,
+        "GBP": 62,
+        "INR": 1793,
+        "MXN": 1130,
+        "NOK": 565,
+        "NZD": 93,
+        "PEN": 179,
+        "SEK": 565,
+        "SGD": 101,
+        "USD": 77
+      },
+      "20": {
+        "AUD": 86,
+        "BRL": 179,
+        "CAD": 82,
+        "CHF": 71,
+        "CLP": 39956,
+        "COP": 140364,
+        "DKK": 431,
+        "EUR": 64,
+        "GBP": 57,
+        "INR": 1655,
+        "MXN": 1043,
+        "NOK": 521,
+        "NZD": 86,
+        "PEN": 165,
+        "SEK": 521,
+        "SGD": 93,
+        "USD": 71
+      },
+      "50": {
+        "AUD": 78,
+        "BRL": 164,
+        "CAD": 75,
+        "CHF": 65,
+        "CLP": 36626,
+        "COP": 128667,
+        "DKK": 395,
+        "EUR": 59,
+        "GBP": 52,
+        "INR": 1517,
+        "MXN": 956,
+        "NOK": 478,
+        "NZD": 78,
+        "PEN": 151,
+        "SEK": 478,
+        "SGD": 85,
+        "USD": 65
+      }
+    }
+  },
+  "enterprise": {
+    "professional": {
+      "5": {
+        "AUD": 321,
+        "BRL": 699,
+        "CAD": 314,
+        "CHF": 499,
+        "CLP": 168693,
+        "COP": 552930,
+        "DKK": 1665,
+        "EUR": 258,
+        "GBP": 223,
+        "INR": 6719,
+        "MXN": 4129,
+        "NOK": 2008,
+        "NZD": 321,
+        "PEN": 671,
+        "SEK": 2008,
+        "SGD": 363,
+        "USD": 279
+      },
+      "10": {
+        "AUD": 298,
+        "BRL": 649,
+        "CAD": 291,
+        "CHF": 259,
+        "CLP": 156643,
+        "COP": 513435,
+        "DKK": 1546,
+        "EUR": 239,
+        "GBP": 207,
+        "INR": 6239,
+        "MXN": 3834,
+        "NOK": 1864,
+        "NZD": 298,
+        "PEN": 623,
+        "SEK": 1864,
+        "SGD": 337,
+        "USD": 259
+      },
+      "20": {
+        "AUD": 275,
+        "BRL": 599,
+        "CAD": 269,
+        "CHF": 239,
+        "CLP": 144594,
+        "COP": 473940,
+        "DKK": 1427,
+        "EUR": 221,
+        "GBP": 191,
+        "INR": 5759,
+        "MXN": 3539,
+        "NOK": 1721,
+        "NZD": 275,
+        "PEN": 575,
+        "SEK": 1721,
+        "SGD": 311,
+        "USD": 239
+      },
+      "50": {
+        "AUD": 252,
+        "BRL": 549,
+        "CAD": 246,
+        "CHF": 219,
+        "CLP": 132544,
+        "COP": 400000,
+        "DKK": 1308,
+        "EUR": 202,
+        "GBP": 175,
+        "INR": 5279,
+        "MXN": 3244,
+        "NOK": 1577,
+        "NZD": 252,
+        "PEN": 527,
+        "SEK": 1577,
+        "SGD": 285,
+        "USD": 219
+      }
+    },
+    "collaborator": {
+      "5": {
+        "AUD": 167,
+        "BRL": 349,
+        "CAD": 160,
+        "CHF": 139,
+        "CLP": 77693,
+        "COP": 272930,
+        "DKK": 839,
+        "EUR": 125,
+        "GBP": 111,
+        "INR": 3219,
+        "MXN": 2029,
+        "NOK": 1014,
+        "NZD": 167,
+        "PEN": 321,
+        "SEK": 1014,
+        "SGD": 181,
+        "USD": 139
+      },
+      "10": {
+        "AUD": 155,
+        "BRL": 324,
+        "CAD": 148,
+        "CHF": 129,
+        "CLP": 72143,
+        "COP": 253435,
+        "DKK": 779,
+        "EUR": 116,
+        "GBP": 103,
+        "INR": 2989,
+        "MXN": 1884,
+        "NOK": 941,
+        "NZD": 155,
+        "PEN": 298,
+        "SEK": 941,
+        "SGD": 168,
+        "USD": 129
+      },
+      "20": {
+        "AUD": 143,
+        "BRL": 299,
+        "CAD": 137,
+        "CHF": 119,
+        "CLP": 66594,
+        "COP": 233940,
+        "DKK": 719,
+        "EUR": 107,
+        "GBP": 95,
+        "INR": 2759,
+        "MXN": 1739,
+        "NOK": 869,
+        "NZD": 143,
+        "PEN": 275,
+        "SEK": 869,
+        "SGD": 155,
+        "USD": 119
+      },
+      "50": {
+        "AUD": 131,
+        "BRL": 274,
+        "CAD": 125,
+        "CHF": 109,
+        "CLP": 61044,
+        "COP": 214445,
+        "DKK": 659,
+        "EUR": 98,
+        "GBP": 87,
+        "INR": 2529,
+        "MXN": 1594,
+        "NOK": 796,
+        "NZD": 131,
+        "PEN": 252,
+        "SEK": 796,
+        "SGD": 142,
+        "USD": 109
+      }
+    }
+  }
+}
diff --git a/services/web/scripts/plan-prices/plans.mjs b/services/web/scripts/plan-prices/plans.mjs
index aa5548f1d0..122b2c5683 100644
--- a/services/web/scripts/plan-prices/plans.mjs
+++ b/services/web/scripts/plan-prices/plans.mjs
@@ -135,6 +135,16 @@ function generateGroupPlans(workSheetJSON) {
   )
 
   const sizes = ['2', '3', '4', '5', '10', '20', '50']
+  const additionalLicenseAddOnLegacyPricesFilePath = path.resolve(
+    __dirname,
+    'additional-license-add-on-legacy-prices.json'
+  )
+  const additionalLicenseAddOnLegacyPricesFile = fs.readFileSync(
+    additionalLicenseAddOnLegacyPricesFilePath
+  )
+  const additionalLicenseAddOnLegacyPrices = JSON.parse(
+    additionalLicenseAddOnLegacyPricesFile
+  )
 
   const result = {}
   for (const type1 of ['educational', 'enterprise']) {
@@ -152,6 +162,15 @@ function generateGroupPlans(workSheetJSON) {
           result[type1][type2][currency][size] = {
             price_in_cents: plan[currency] * 100,
           }
+
+          const additionalLicenseAddOnLegacyPrice =
+            additionalLicenseAddOnLegacyPrices[type1][type2][size]?.[currency]
+          if (additionalLicenseAddOnLegacyPrice) {
+            Object.assign(result[type1][type2][currency][size], {
+              additional_license_legacy_price_in_cents:
+                additionalLicenseAddOnLegacyPrice * 100,
+            })
+          }
         }
       }
     }
diff --git a/services/web/test/unit/src/Subscription/RecurlyClientTests.js b/services/web/test/unit/src/Subscription/RecurlyClientTests.js
index 35fd515d8c..fac2afc200 100644
--- a/services/web/test/unit/src/Subscription/RecurlyClientTests.js
+++ b/services/web/test/unit/src/Subscription/RecurlyClientTests.js
@@ -50,6 +50,7 @@ describe('RecurlyClient', function () {
       total: 16.5,
       periodStart: new Date(),
       periodEnd: new Date(),
+      createdAt: new Date(),
     })
 
     this.recurlySubscription = {
@@ -79,6 +80,7 @@ describe('RecurlyClient', function () {
       currency: this.subscription.currency,
       currentPeriodStartedAt: this.subscription.periodStart,
       currentPeriodEndsAt: this.subscription.periodEnd,
+      createdAt: this.subscription.createdAt,
     }
 
     this.recurlySubscriptionChange = new recurly.SubscriptionChange()
diff --git a/services/web/test/unit/src/Subscription/RecurlyEntitiesTest.js b/services/web/test/unit/src/Subscription/RecurlyEntitiesTest.js
index 66280e1a7f..c45f2d5580 100644
--- a/services/web/test/unit/src/Subscription/RecurlyEntitiesTest.js
+++ b/services/web/test/unit/src/Subscription/RecurlyEntitiesTest.js
@@ -185,6 +185,38 @@ describe('RecurlyEntities', function () {
           )
         })
 
+        it('returns a change request with quantity and unit price specified', function () {
+          const {
+            RecurlySubscriptionChangeRequest,
+            RecurlySubscriptionAddOnUpdate,
+          } = this.RecurlyEntities
+          const quantity = 5
+          const unitPrice = 10
+          const changeRequest = this.subscription.getRequestForAddOnPurchase(
+            'another-add-on',
+            quantity,
+            unitPrice
+          )
+          expect(changeRequest).to.deep.equal(
+            new RecurlySubscriptionChangeRequest({
+              subscription: this.subscription,
+              timeframe: 'now',
+              addOnUpdates: [
+                new RecurlySubscriptionAddOnUpdate({
+                  code: this.addOn.code,
+                  quantity: this.addOn.quantity,
+                  unitPrice: this.addOn.unitPrice,
+                }),
+                new RecurlySubscriptionAddOnUpdate({
+                  code: 'another-add-on',
+                  quantity,
+                  unitPrice,
+                }),
+              ],
+            })
+          )
+        })
+
         it('throws a DuplicateAddOnError if the subscription already has the add-on', function () {
           expect(() =>
             this.subscription.getRequestForAddOnPurchase(this.addOn.code)
@@ -346,6 +378,7 @@ describe('RecurlyEntities', function () {
           total: 11.5,
           periodStart: new Date(),
           periodEnd: new Date(),
+          createdAt: new Date(),
         })
         const change = new RecurlySubscriptionChange({
           subscription,
diff --git a/services/web/test/unit/src/Subscription/SubscriptionGroupControllerTests.mjs b/services/web/test/unit/src/Subscription/SubscriptionGroupControllerTests.mjs
index d55d7fe9dd..3956d109af 100644
--- a/services/web/test/unit/src/Subscription/SubscriptionGroupControllerTests.mjs
+++ b/services/web/test/unit/src/Subscription/SubscriptionGroupControllerTests.mjs
@@ -56,6 +56,7 @@ describe('SubscriptionGroupController', function () {
           .stub()
           .resolves(this.createSubscriptionChangeData),
         ensureFlexibleLicensingEnabled: sinon.stub().resolves(),
+        ensureAddSeatsEnabled: sinon.stub().resolves(),
         getGroupPlanUpgradePreview: sinon
           .stub()
           .resolves(this.previewSubscriptionChangeData),
@@ -336,6 +337,9 @@ describe('SubscriptionGroupController', function () {
           this.SubscriptionGroupHandler.promises.ensureFlexibleLicensingEnabled
             .calledWith(this.plan)
             .should.equal(true)
+          this.SubscriptionGroupHandler.promises.ensureAddSeatsEnabled
+            .calledWith(this.plan)
+            .should.equal(true)
           page.should.equal('subscriptions/add-seats')
           props.subscriptionId.should.equal(this.subscriptionId)
           props.groupName.should.equal(this.subscription.teamName)
@@ -375,6 +379,21 @@ describe('SubscriptionGroupController', function () {
 
       this.Controller.addSeatsToGroupSubscription(this.req, res)
     })
+
+    it('should redirect to subscription page when "add seats" is not enabled', function (done) {
+      this.SubscriptionGroupHandler.promises.ensureAddSeatsEnabled = sinon
+        .stub()
+        .rejects()
+
+      const res = {
+        redirect: url => {
+          url.should.equal('/user/subscription')
+          done()
+        },
+      }
+
+      this.Controller.addSeatsToGroupSubscription(this.req, res)
+    })
   })
 
   describe('previewAddSeatsSubscriptionChange', function () {
diff --git a/services/web/test/unit/src/Subscription/SubscriptionGroupHandlerTests.js b/services/web/test/unit/src/Subscription/SubscriptionGroupHandlerTests.js
index aacfa916d3..aa3538e6cb 100644
--- a/services/web/test/unit/src/Subscription/SubscriptionGroupHandlerTests.js
+++ b/services/web/test/unit/src/Subscription/SubscriptionGroupHandlerTests.js
@@ -15,9 +15,12 @@ describe('SubscriptionGroupHandler', function () {
     this.subscription_id = '31DSd1123D'
     this.adding = 1
     this.paymentMethod = { cardType: 'Visa', lastFour: '1111' }
+    this.RecurlyEntities = {
+      MEMBERS_LIMIT_ADD_ON_CODE: 'additional-license',
+    }
     this.localPlanInSettings = {
-      membersLimit: 2,
-      membersLimitAddOn: 'additional-license',
+      membersLimit: 5,
+      membersLimitAddOn: this.RecurlyEntities.MEMBERS_LIMIT_ADD_ON_CODE,
     }
 
     this.subscription = {
@@ -37,12 +40,21 @@ describe('SubscriptionGroupHandler', function () {
       id: 123,
       addOns: [
         {
-          code: 'additional-license',
+          code: this.RecurlyEntities.MEMBERS_LIMIT_ADD_ON_CODE,
           quantity: 1,
         },
       ],
       getRequestForAddOnUpdate: sinon.stub().returns(this.changeRequest),
       getRequestForGroupPlanUpgrade: sinon.stub().returns(this.changeRequest),
+      getRequestForAddOnPurchase: sinon.stub().returns(this.changeRequest),
+      getRequestForFlexibleLicensingGroupPlanUpgrade: sinon
+        .stub()
+        .returns(this.changeRequest),
+      createdAt: '2025-01-01T00:00:00Z',
+      currency: 'USD',
+      hasAddOn(code) {
+        return this.addOns.some(addOn => addOn.code === code)
+      },
     }
 
     this.SubscriptionLocator = {
@@ -81,7 +93,7 @@ describe('SubscriptionGroupHandler', function () {
     this.previewSubscriptionChange = {
       nextAddOns: [
         {
-          code: 'additional-license',
+          code: this.RecurlyEntities.MEMBERS_LIMIT_ADD_ON_CODE,
           quantity: this.recurlySubscription.addOns[0].quantity + this.adding,
         },
       ],
@@ -115,6 +127,19 @@ describe('SubscriptionGroupHandler', function () {
       },
     }
 
+    this.GroupPlansData = {
+      enterprise: {
+        collaborator: {
+          USD: {
+            5: {
+              price_in_cents: 10000,
+              additional_license_legacy_price_in_cents: 5000,
+            },
+          },
+        },
+      },
+    }
+
     this.Handler = SandboxedModule.require(modulePath, {
       requires: {
         './SubscriptionUpdater': this.SubscriptionUpdater,
@@ -126,7 +151,9 @@ describe('SubscriptionGroupHandler', function () {
         },
         './RecurlyClient': this.RecurlyClient,
         './PlansLocator': this.PlansLocator,
+        './RecurlyEntities': this.RecurlyEntities,
         '../Authentication/SessionManager': this.SessionManager,
+        './GroupPlansData': this.GroupPlansData,
       },
     })
   })
@@ -274,8 +301,8 @@ describe('SubscriptionGroupHandler', function () {
       expect(data).to.deep.equal({
         subscription: { groupPlan: true },
         plan: {
-          membersLimit: 2,
-          membersLimitAddOn: 'additional-license',
+          membersLimit: 5,
+          membersLimitAddOn: this.RecurlyEntities.MEMBERS_LIMIT_ADD_ON_CODE,
           canUseFlexibleLicensing: true,
         },
         recurlySubscription: this.recurlySubscription,
@@ -293,60 +320,169 @@ describe('SubscriptionGroupHandler', function () {
       })
     })
 
-    afterEach(function () {
-      this.recurlySubscription.getRequestForAddOnUpdate
-        .calledWith(
-          'additional-license',
-          this.recurlySubscription.addOns[0].quantity + this.adding
+    describe('has "additional-license" add-on', function () {
+      beforeEach(function () {
+        this.recurlySubscription.addOns = [
+          {
+            code: this.RecurlyEntities.MEMBERS_LIMIT_ADD_ON_CODE,
+            quantity: 6,
+          },
+        ]
+        this.prevQuantity = this.recurlySubscription.addOns[0].quantity
+        this.previewSubscriptionChange.nextAddOns = [
+          {
+            code: this.RecurlyEntities.MEMBERS_LIMIT_ADD_ON_CODE,
+            quantity: this.prevQuantity + this.adding,
+          },
+        ]
+      })
+
+      afterEach(function () {
+        sinon.assert.notCalled(
+          this.recurlySubscription.getRequestForAddOnPurchase
         )
-        .should.equal(true)
-    })
 
-    describe('previewAddSeatsSubscriptionChange', function () {
-      it('should return the subscription change preview', async function () {
-        const preview =
-          await this.Handler.promises.previewAddSeatsSubscriptionChange(
-            this.req
-          )
-
-        this.RecurlyClient.promises.getPaymentMethod
-          .calledWith(this.user_id)
-          .should.equal(true)
-        this.RecurlyClient.promises.previewSubscriptionChange
-          .calledWith(this.changeRequest)
-          .should.equal(true)
-        this.SubscriptionController.makeChangePreview
+        this.recurlySubscription.getRequestForAddOnUpdate
           .calledWith(
-            {
-              type: 'add-on-update',
-              addOn: {
-                code: 'additional-license',
-                quantity:
-                  this.recurlySubscription.addOns[0].quantity + this.adding,
-                prevQuantity: this.adding,
-              },
-            },
-            this.previewSubscriptionChange,
-            this.paymentMethod
+            this.RecurlyEntities.MEMBERS_LIMIT_ADD_ON_CODE,
+            this.recurlySubscription.addOns[0].quantity + this.adding
           )
           .should.equal(true)
-        preview.should.equal(this.changePreview)
+      })
+
+      describe('previewAddSeatsSubscriptionChange', function () {
+        it('should return the subscription change preview', async function () {
+          const preview =
+            await this.Handler.promises.previewAddSeatsSubscriptionChange(
+              this.req
+            )
+          this.RecurlyClient.promises.getPaymentMethod
+            .calledWith(this.user_id)
+            .should.equal(true)
+          this.RecurlyClient.promises.previewSubscriptionChange
+            .calledWith(this.changeRequest)
+            .should.equal(true)
+          this.SubscriptionController.makeChangePreview
+            .calledWith(
+              {
+                type: 'add-on-update',
+                addOn: {
+                  code: this.RecurlyEntities.MEMBERS_LIMIT_ADD_ON_CODE,
+                  quantity:
+                    this.previewSubscriptionChange.nextAddOns[0].quantity,
+                  prevQuantity: this.prevQuantity,
+                },
+              },
+              this.previewSubscriptionChange,
+              this.paymentMethod
+            )
+            .should.equal(true)
+          preview.should.equal(this.changePreview)
+        })
+      })
+
+      describe('createAddSeatsSubscriptionChange', function () {
+        it('should change the subscription', async function () {
+          const result =
+            await this.Handler.promises.createAddSeatsSubscriptionChange(
+              this.req
+            )
+
+          this.RecurlyClient.promises.applySubscriptionChangeRequest
+            .calledWith(this.changeRequest)
+            .should.equal(true)
+          this.SubscriptionHandler.promises.syncSubscription
+            .calledWith({ uuid: this.recurlySubscription.id }, this.user_id)
+            .should.equal(true)
+          expect(result).to.deep.equal({
+            adding: this.req.body.adding,
+          })
+        })
       })
     })
 
-    describe('createAddSeatsSubscriptionChange', function () {
-      it('should change the subscription', async function () {
-        const result =
-          await this.Handler.promises.createAddSeatsSubscriptionChange(this.req)
+    describe('has no "additional-license" add-on', function () {
+      beforeEach(function () {
+        this.recurlySubscription.addOns = []
+        this.prevQuantity = this.recurlySubscription.addOns[0]?.quantity ?? 0
+        this.previewSubscriptionChange.nextAddOns = [
+          {
+            code: this.RecurlyEntities.MEMBERS_LIMIT_ADD_ON_CODE,
+            quantity: this.prevQuantity + this.adding,
+          },
+        ]
+        this.PlansLocator.findLocalPlanInSettings = sinon.stub().returns({
+          ...this.localPlanInSettings,
+          planCode: 'group_collaborator_5_enterprise',
+          canUseFlexibleLicensing: true,
+        })
+      })
 
-        this.RecurlyClient.promises.applySubscriptionChangeRequest
-          .calledWith(this.changeRequest)
-          .should.equal(true)
-        this.SubscriptionHandler.promises.syncSubscription
-          .calledWith({ uuid: this.recurlySubscription.id }, this.user_id)
-          .should.equal(true)
-        expect(result).to.deep.equal({
-          adding: this.req.body.adding,
+      afterEach(function () {
+        sinon.assert.notCalled(
+          this.recurlySubscription.getRequestForAddOnUpdate
+        )
+      })
+
+      describe('previewAddSeatsSubscriptionChange', function () {
+        let preview
+
+        afterEach(function () {
+          this.RecurlyClient.promises.getPaymentMethod
+            .calledWith(this.user_id)
+            .should.equal(true)
+          this.RecurlyClient.promises.previewSubscriptionChange
+            .calledWith(this.changeRequest)
+            .should.equal(true)
+          this.SubscriptionController.makeChangePreview
+            .calledWith(
+              {
+                type: 'add-on-update',
+                addOn: {
+                  code: this.RecurlyEntities.MEMBERS_LIMIT_ADD_ON_CODE,
+                  quantity:
+                    this.previewSubscriptionChange.nextAddOns[0].quantity,
+                  prevQuantity: this.prevQuantity,
+                },
+              },
+              this.previewSubscriptionChange,
+              this.paymentMethod
+            )
+            .should.equal(true)
+          preview.should.equal(this.changePreview)
+        })
+
+        it('should return the subscription change preview with legacy add-on price', async function () {
+          this.recurlySubscription.createdAt = '2025-01-01T00:00:00Z'
+
+          preview =
+            await this.Handler.promises.previewAddSeatsSubscriptionChange(
+              this.req
+            )
+          this.recurlySubscription.getRequestForAddOnPurchase
+            .calledWithExactly(
+              this.RecurlyEntities.MEMBERS_LIMIT_ADD_ON_CODE,
+              this.adding,
+              this.GroupPlansData.enterprise.collaborator.USD[5]
+                .additional_license_legacy_price_in_cents / 100
+            )
+            .should.equal(true)
+        })
+
+        it('should return the subscription change preview with non-legacy add-on price', async function () {
+          this.recurlySubscription.createdAt = '2030-01-01T00:00:00Z'
+
+          preview =
+            await this.Handler.promises.previewAddSeatsSubscriptionChange(
+              this.req
+            )
+          this.recurlySubscription.getRequestForAddOnPurchase
+            .calledWithExactly(
+              this.RecurlyEntities.MEMBERS_LIMIT_ADD_ON_CODE,
+              this.adding,
+              undefined
+            )
+            .should.equal(true)
         })
       })
     })
@@ -358,16 +494,32 @@ describe('SubscriptionGroupHandler', function () {
         this.Handler.promises.ensureFlexibleLicensingEnabled({
           canUseFlexibleLicensing: false,
         })
-      ).to.be.rejectedWith('The group plan does not support flexible licencing')
+      ).to.be.rejectedWith('The group plan does not support flexible licensing')
+    })
+
+    it('should not throw if the subscription can use flexible licensing', async function () {
+      await expect(
+        this.Handler.promises.ensureFlexibleLicensingEnabled({
+          canUseFlexibleLicensing: true,
+        })
+      ).to.not.be.rejected
     })
   })
 
-  it('should not throw if the subscription can use flexible licensing', async function () {
-    await expect(
-      this.Handler.promises.ensureFlexibleLicensingEnabled({
-        canUseFlexibleLicensing: true,
-      })
-    ).to.not.be.rejected
+  describe('ensureAddSeatsEnabled', function () {
+    it('should throw if the subscription can not use the "add seats" feature', async function () {
+      await expect(
+        this.Handler.promises.ensureAddSeatsEnabled({})
+      ).to.be.rejectedWith('The group plan does not support adding seats')
+    })
+
+    it('should not throw if the subscription can use the "add seats" feature', async function () {
+      await expect(
+        this.Handler.promises.ensureAddSeatsEnabled({
+          membersLimitAddOn: this.RecurlyEntities.MEMBERS_LIMIT_ADD_ON_CODE,
+        })
+      ).to.not.be.rejected
+    })
   })
 
   describe('upgradeGroupPlan', function () {