diff --git a/services/web/scripts/sync_v1_subscriptions.js b/services/web/scripts/sync_v1_subscriptions.js
index f6ba9c9ce2..2f56eb7f56 100644
--- a/services/web/scripts/sync_v1_subscriptions.js
+++ b/services/web/scripts/sync_v1_subscriptions.js
@@ -9,29 +9,56 @@ const async = require('async')
 const logger = require('logger-sharelatex')
 logger.logger.level('error')
 
+const areFeaturesEqual = function(featuresA, featuresB) {
+  for (const feature in featuresA) {
+    if (featuresA[feature] !== featuresB[feature]) {
+      return false
+    }
+  }
+  return true
+}
+
+var outOfSyncUserCount = 0
+var userCount = null
+
 db.users.find({
   'overleaf.id': { $exists: true }
 }, {
-  overleaf: 1
+  overleaf: 1,
+  features: 1
 }, function (error, users) {
   if (error) throw error
-  console.log('Found users:', users.length)
+  console.log('USER COUNT', userCount = users.length)
   async.mapSeries(users, function (user, callback) {
-    console.log('refreshing in v2', user._id)
+    console.log('REFRESHING IN v2', user._id)
     FeaturesUpdater.refreshFeatures(user._id, false, function (error) {
       if (error) console.error('ERROR', error)
-      console.log('refreshing in v1', user._id)
+      console.log('REFRESHING IN v1', user._id)
       V1SubscriptionManager.notifyV1OfFeaturesChange(
         user._id,
         function (error) {
           if (error) console.error('ERROR', error)
-          callback()
+          db.users.find({
+            _id: user._id
+          }, {
+            features: 1
+          }, function (error, [updatedUser]) {
+            if (error) throw error
+            if (areFeaturesEqual(user.features, updatedUser.features)) {
+              console.log('UNCHANGED', user._id)
+            } else {
+              console.log('MODIFIED', user._id)
+              outOfSyncUserCount = outOfSyncUserCount + 1
+            }
+            callback()
+          })
         }
       )
     })
   }, function (error) {
     if (error) throw error
     console.log('FINISHED!')
+    console.log('OUT OF SYNC USERS', outOfSyncUserCount, '/', userCount)
     process.exit()
   })
 })