diff --git a/services/web/app/src/Features/Subscription/SubscriptionUpdater.js b/services/web/app/src/Features/Subscription/SubscriptionUpdater.js
index 6ea5cd8108..fae13eec00 100644
--- a/services/web/app/src/Features/Subscription/SubscriptionUpdater.js
+++ b/services/web/app/src/Features/Subscription/SubscriptionUpdater.js
@@ -274,27 +274,6 @@ async function _notifySupportSubscriptionDeletionSkipped(
   await Modules.promises.hooks.fire('sendSupportRequest', data)
 }
 
-async function _notifySubscriptionDowngradeSkipped(
-  subscription,
-  recurlySubscription,
-  subject
-) {
-  const adminUrl = `${Settings.adminUrl + '/admin/user/' + subscription.admin_id}`
-  const groupUrl = `${Settings.adminUrl + '/admin/group/' + subscription._id}`
-  let message = `\n**Recurly account:** <a href="${recurlySubscription?.account?.url}">${recurlySubscription?.account?.url}</a>`
-  message += `\n**Group admin:** <a href="${adminUrl}">${adminUrl}</a>`
-  message += `\n**Group:** <a href="${groupUrl}">${groupUrl}</a>`
-
-  const data = {
-    subject,
-    inbox: 'support',
-    tags: 'Group subscription',
-    message,
-  }
-
-  await Modules.promises.hooks.fire('sendSupportRequest', data)
-}
-
 async function updateSubscriptionFromRecurly(
   recurlySubscription,
   subscription,
@@ -374,8 +353,6 @@ async function updateSubscriptionFromRecurly(
     return
   }
 
-  const currentSubscriptionPlanCode = subscription.planCode
-
   const addOns = recurlySubscription?.subscription_add_ons?.map(addOn => {
     return {
       addOnCode: addOn.add_on_code,
@@ -394,65 +371,13 @@ async function updateSubscriptionFromRecurly(
   }
 
   if (plan.groupPlan) {
-    if (Settings.preventSubscriptionPlanDowngrade) {
-      // We're preventing professional to standard downgrade.
-      // See https://github.com/overleaf/internal/issues/19852
-      const isProfessionalToStandardDowngrade =
-        currentSubscriptionPlanCode.includes('professional') &&
-        plan.planCode.includes('collaborator') &&
-        !plan.planCode.includes('_ibis') &&
-        !plan.planCode.includes('_heron') &&
-        plan.planCode !== 'collaborator-annual_free_trial'
-
-      if (isProfessionalToStandardDowngrade) {
-        try {
-          await _notifySubscriptionDowngradeSkipped(
-            subscription,
-            recurlySubscription,
-            'Skipped professional to standard downgrade'
-          )
-        } catch (e) {
-          logger.warn(
-            { subscriptionId: subscription._id },
-            'unable to send notification to support that  professional to standard downgrade was skipped'
-          )
-        }
-        subscription.planCode = currentSubscriptionPlanCode
-      }
-    }
-
     if (!subscription.groupPlan) {
       subscription.member_ids = subscription.member_ids || []
       subscription.member_ids.push(subscription.admin_id)
     }
 
     subscription.groupPlan = true
-
-    if (Settings.preventSubscriptionPlanDowngrade) {
-      // We're preventing automatically downgrading of group member limit
-      // See https://github.com/overleaf/internal/issues/19852
-      if (
-        !subscription.membersLimit ||
-        subscription.membersLimit < plan.membersLimit
-      ) {
-        subscription.membersLimit = plan.membersLimit
-      } else {
-        try {
-          await _notifySubscriptionDowngradeSkipped(
-            subscription,
-            recurlySubscription,
-            'Skipped group size downgrade'
-          )
-        } catch (e) {
-          logger.warn(
-            { subscriptionId: subscription._id },
-            'unable to send notification to support that group size downgrade was skipped'
-          )
-        }
-      }
-    } else {
-      subscription.membersLimit = plan.membersLimit
-    }
+    subscription.membersLimit = plan.membersLimit
 
     // Some plans allow adding more seats than the base plan provides.
     // This is recorded as a subscription add on.
diff --git a/services/web/test/unit/src/Subscription/SubscriptionUpdaterTests.js b/services/web/test/unit/src/Subscription/SubscriptionUpdaterTests.js
index b9821f46ff..e0e8d666bf 100644
--- a/services/web/test/unit/src/Subscription/SubscriptionUpdaterTests.js
+++ b/services/web/test/unit/src/Subscription/SubscriptionUpdaterTests.js
@@ -431,93 +431,6 @@ describe('SubscriptionUpdater', function () {
       assert.notEqual(this.subscription.groupPlan, true)
     })
 
-    describe('prevent subscription plan downgrade', function () {
-      describe('prevent professional to standard plan downgrade', function () {
-        beforeEach(function () {
-          this.recurlyPlan.groupPlan = true
-          this.recurlyPlan.planCode = 'collaborator'
-          this.recurlySubscription.plan.plan_code = 'collaborator'
-          this.groupSubscription.planCode = 'professional'
-        })
-        it('should not downgrade from professional to standard plan when preventSubscriptionPlanDowngrade=true', async function () {
-          this.Settings.preventSubscriptionPlanDowngrade = true
-          await this.SubscriptionUpdater.promises.updateSubscriptionFromRecurly(
-            this.recurlySubscription,
-            this.groupSubscription,
-            {}
-          )
-          this.groupSubscription.planCode.should.equal('professional')
-
-          const adminUrl = `${this.Settings.adminUrl + '/admin/user/' + this.groupSubscription.admin_id}`
-          const groupUrl = `${this.Settings.adminUrl + '/admin/group/' + this.groupSubscription._id}`
-          let message = `\n**Recurly account:** <a href="${this.recurlySubscription?.account?.url}">${this.recurlySubscription?.account?.url}</a>`
-          message += `\n**Group admin:** <a href="${adminUrl}">${adminUrl}</a>`
-          message += `\n**Group:** <a href="${groupUrl}">${groupUrl}</a>`
-          expect(this.Modules.promises.hooks.fire).to.have.been.calledOnce
-          expect(this.Modules.promises.hooks.fire).to.have.been.calledWith(
-            'sendSupportRequest',
-            {
-              subject: 'Skipped professional to standard downgrade',
-              inbox: 'support',
-              tags: 'Group subscription',
-              message,
-            }
-          )
-        })
-        it('should downgrade from professional to standard plan when preventSubscriptionPlanDowngrade=false', async function () {
-          this.Settings.preventSubscriptionPlanDowngrade = false
-          await this.SubscriptionUpdater.promises.updateSubscriptionFromRecurly(
-            this.recurlySubscription,
-            this.groupSubscription,
-            {}
-          )
-          this.groupSubscription.planCode.should.equal('collaborator')
-        })
-      })
-
-      describe('prevent decreasing group size', function () {
-        beforeEach(function () {
-          this.groupSubscription.membersLimit = 3
-          this.recurlyPlan.groupPlan = true
-          this.recurlyPlan.membersLimit = 2
-        })
-        it('should not reduce member limits when preventSubscriptionPlanDowngrade=true', async function () {
-          this.Settings.preventSubscriptionPlanDowngrade = true
-          await this.SubscriptionUpdater.promises.updateSubscriptionFromRecurly(
-            this.recurlySubscription,
-            this.groupSubscription,
-            {}
-          )
-          this.groupSubscription.membersLimit.should.equal(3)
-
-          const adminUrl = `${this.Settings.adminUrl + '/admin/user/' + this.groupSubscription.admin_id}`
-          const groupUrl = `${this.Settings.adminUrl + '/admin/group/' + this.groupSubscription._id}`
-          let message = `\n**Recurly account:** <a href="${this.recurlySubscription?.account?.url}">${this.recurlySubscription?.account?.url}</a>`
-          message += `\n**Group admin:** <a href="${adminUrl}">${adminUrl}</a>`
-          message += `\n**Group:** <a href="${groupUrl}">${groupUrl}</a>`
-          expect(this.Modules.promises.hooks.fire).to.have.been.calledOnce
-          expect(this.Modules.promises.hooks.fire).to.have.been.calledWith(
-            'sendSupportRequest',
-            {
-              subject: 'Skipped group size downgrade',
-              inbox: 'support',
-              tags: 'Group subscription',
-              message,
-            }
-          )
-        })
-        it('should reduce member limits when preventSubscriptionPlanDowngrade=false', async function () {
-          this.Settings.preventSubscriptionPlanDowngrade = false
-          await this.SubscriptionUpdater.promises.updateSubscriptionFromRecurly(
-            this.recurlySubscription,
-            this.groupSubscription,
-            {}
-          )
-          this.groupSubscription.membersLimit.should.equal(2)
-        })
-      })
-    })
-
     describe('when the plan allows adding more seats', function () {
       beforeEach(function () {
         this.membersLimitAddOn = 'add_on1'