diff --git a/src/addon/mod/forum/providers/sync.ts b/src/addon/mod/forum/providers/sync.ts
index b628ce4e0..8d63ccfc5 100644
--- a/src/addon/mod/forum/providers/sync.ts
+++ b/src/addon/mod/forum/providers/sync.ts
@@ -294,7 +294,7 @@ export class AddonModForumSyncProvider extends CoreSyncBaseProvider {
             const promises = [];
 
             results.forEach((result) => {
-                if (result.updated) {
+                if (result.updated.length) {
                     updated = true;
 
                     // Invalidate discussions of updated ratings.
diff --git a/src/addon/mod/glossary/components/index/addon-mod-glossary-index.html b/src/addon/mod/glossary/components/index/addon-mod-glossary-index.html
index 2b748a568..ad00c5d0f 100644
--- a/src/addon/mod/glossary/components/index/addon-mod-glossary-index.html
+++ b/src/addon/mod/glossary/components/index/addon-mod-glossary-index.html
@@ -25,7 +25,7 @@
         <core-course-module-description [description]="description" [component]="component" [componentId]="componentId"></core-course-module-description>
 
         <!-- Glossary entries found to be synchronized -->
-        <ion-card class="core-warning-card" icon-start *ngIf="hasOffline">
+        <ion-card class="core-warning-card" icon-start *ngIf="hasOffline || hasOfflineRatings">
             <ion-icon name="warning"></ion-icon> {{ 'core.hasdatatosync' | translate:{$a: moduleName} }}
         </ion-card>
 
diff --git a/src/addon/mod/glossary/components/index/index.ts b/src/addon/mod/glossary/components/index/index.ts
index f896e602f..e05699f71 100644
--- a/src/addon/mod/glossary/components/index/index.ts
+++ b/src/addon/mod/glossary/components/index/index.ts
@@ -16,6 +16,9 @@ import { Component, Injector, ViewChild } from '@angular/core';
 import { Content, PopoverController } from 'ionic-angular';
 import { CoreSplitViewComponent } from '@components/split-view/split-view';
 import { CoreCourseModuleMainActivityComponent } from '@core/course/classes/main-activity-component';
+import { CoreRatingProvider } from '@core/rating/providers/rating';
+import { CoreRatingOfflineProvider } from '@core/rating/providers/offline';
+import { CoreRatingSyncProvider } from '@core/rating/providers/sync';
 import { AddonModGlossaryProvider } from '../../providers/glossary';
 import { AddonModGlossaryOfflineProvider } from '../../providers/offline';
 import { AddonModGlossarySyncProvider } from '../../providers/sync';
@@ -57,11 +60,16 @@ export class AddonModGlossaryIndexComponent extends CoreCourseModuleMainActivity
     protected getDivider: (entry: any) => string;
     protected addEntryObserver: any;
 
+    hasOfflineRatings: boolean;
+    protected ratingOfflineObserver: any;
+    protected ratingSyncObserver: any;
+
     constructor(injector: Injector,
             private popoverCtrl: PopoverController,
             private glossaryProvider: AddonModGlossaryProvider,
             private glossaryOffline: AddonModGlossaryOfflineProvider,
-            private glossarySync: AddonModGlossarySyncProvider) {
+            private glossarySync: AddonModGlossarySyncProvider,
+            private ratingOffline: CoreRatingOfflineProvider) {
         super(injector);
     }
 
@@ -74,6 +82,20 @@ export class AddonModGlossaryIndexComponent extends CoreCourseModuleMainActivity
         // When an entry is added, we reload the data.
         this.addEntryObserver = this.eventsProvider.on(AddonModGlossaryProvider.ADD_ENTRY_EVENT, this.eventReceived.bind(this));
 
+        // Listen for offline ratings saved and synced.
+        this.ratingOfflineObserver = this.eventsProvider.on(CoreRatingProvider.RATING_SAVED_EVENT, (data) => {
+            if (this.glossary && data.component == 'mod_glossary' && data.ratingArea == 'entry' && data.contextLevel == 'module'
+                    && data.instanceId == this.glossary.coursemodule) {
+                this.hasOfflineRatings = true;
+            }
+        });
+        this.ratingSyncObserver = this.eventsProvider.on(CoreRatingSyncProvider.SYNCED_EVENT, (data) => {
+            if (this.glossary && data.component == 'mod_glossary' && data.ratingArea == 'entry' && data.contextLevel == 'module'
+                    && data.instanceId == this.glossary.coursemodule) {
+                this.hasOfflineRatings = false;
+            }
+        });
+
         this.loadContent(false, true).then(() => {
             if (!this.glossary) {
                 return;
@@ -118,15 +140,23 @@ export class AddonModGlossaryIndexComponent extends CoreCourseModuleMainActivity
                 return this.syncActivity(showErrors);
             }
         }).then(() => {
+            const promises = [];
 
-            return this.fetchEntries().then(() => {
+            promises.push(this.fetchEntries().then(() => {
                 // Check if there are responses stored in offline.
                 return this.glossaryOffline.getGlossaryNewEntries(this.glossary.id).then((offlineEntries) => {
                     offlineEntries.sort((a, b) => a.concept.localeCompare(b.fullname));
                     this.hasOffline = !!offlineEntries.length;
                     this.offlineEntries = offlineEntries || [];
                 });
-            });
+            }));
+
+            promises.push(this.ratingOffline.hasRatings('mod_glossary', 'entry', 'module', this.glossary.coursemodule)
+                    .then((hasRatings) => {
+                this.hasOfflineRatings = hasRatings;
+            }));
+
+            return Promise.all(promises);
         }).then(() => {
             // All data obtained, now fill the context menu.
             this.fillContextMenu(refresh);
@@ -189,7 +219,17 @@ export class AddonModGlossaryIndexComponent extends CoreCourseModuleMainActivity
      * @return {Promise<any>} Promise resolved when done.
      */
     protected sync(): Promise<boolean> {
-        return this.glossarySync.syncGlossaryEntries(this.glossary.id);
+        const promises = [
+            this.glossarySync.syncGlossaryEntries(this.glossary.id),
+            this.glossarySync.syncRatings(this.glossary.coursemodule)
+        ];
+
+        return Promise.all(promises).then((results) => {
+            return results.reduce((a, b) => ({
+                updated: a.updated || b.updated,
+                warnings: (a.warnings || []).concat(b.warnings || []),
+            }), {updated: false});
+        });
     }
 
     /**
@@ -345,7 +385,7 @@ export class AddonModGlossaryIndexComponent extends CoreCourseModuleMainActivity
     openEntry(entryId: number): void {
         const params = {
             courseId: this.courseId,
-            entryId: entryId,
+            entryId: entryId
         };
         this.splitviewCtrl.push('AddonModGlossaryEntryPage', params);
         this.selectedEntry = entryId;
@@ -400,5 +440,7 @@ export class AddonModGlossaryIndexComponent extends CoreCourseModuleMainActivity
         super.ngOnDestroy();
 
         this.addEntryObserver && this.addEntryObserver.off();
+        this.ratingOfflineObserver && this.ratingOfflineObserver.off();
+        this.ratingSyncObserver && this.ratingSyncObserver.off();
     }
 }
diff --git a/src/addon/mod/glossary/pages/entry/entry.html b/src/addon/mod/glossary/pages/entry/entry.html
index 28dc4be7a..f34e46d27 100644
--- a/src/addon/mod/glossary/pages/entry/entry.html
+++ b/src/addon/mod/glossary/pages/entry/entry.html
@@ -31,6 +31,8 @@
             <ion-item text-wrap *ngIf="entry.approved != 1">
                 <p><em>{{ 'addon.mod_glossary.entrypendingapproval' | translate }}</em></p>
             </ion-item>
+            <core-rating-rate *ngIf="glossary && ratingInfo" [ratingInfo]="ratingInfo" contextLevel="module" [instanceId]="glossary.coursemodule" [itemId]="entry.id" [itemSetId]="0" [courseId]="glossary.courseid" [aggregateMethod]="glossary.assessed" [scaleId]="glossary.scale" [userId]="entry.userid" (onUpdate)="ratingUpdated()"></core-rating-rate>
+            <core-rating-aggregate *ngIf="glossary && ratingInfo" [ratingInfo]="ratingInfo" contextLevel="module" [instanceId]="glossary.coursemodule" [itemId]="entry.id" [courseId]="glossary.courseid" [aggregateMethod]="glossary.assessed" [scaleId]="glossary.scale"></core-rating-aggregate>
         </ng-container>
 
         <ion-card *ngIf="!entry">
diff --git a/src/addon/mod/glossary/pages/entry/entry.module.ts b/src/addon/mod/glossary/pages/entry/entry.module.ts
index 83b3642cf..cc69e9dc4 100644
--- a/src/addon/mod/glossary/pages/entry/entry.module.ts
+++ b/src/addon/mod/glossary/pages/entry/entry.module.ts
@@ -18,6 +18,7 @@ import { TranslateModule } from '@ngx-translate/core';
 import { CoreComponentsModule } from '@components/components.module';
 import { CoreDirectivesModule } from '@directives/directives.module';
 import { CorePipesModule } from '@pipes/pipes.module';
+import { CoreRatingComponentsModule } from '@core/rating/components/components.module';
 import { AddonModGlossaryEntryPage } from './entry';
 
 @NgModule({
@@ -29,7 +30,8 @@ import { AddonModGlossaryEntryPage } from './entry';
         CoreDirectivesModule,
         CorePipesModule,
         IonicPageModule.forChild(AddonModGlossaryEntryPage),
-        TranslateModule.forChild()
+        TranslateModule.forChild(),
+        CoreRatingComponentsModule
     ],
 })
 export class AddonModForumDiscussionPageModule {}
diff --git a/src/addon/mod/glossary/pages/entry/entry.ts b/src/addon/mod/glossary/pages/entry/entry.ts
index 461f0350b..03da1c30d 100644
--- a/src/addon/mod/glossary/pages/entry/entry.ts
+++ b/src/addon/mod/glossary/pages/entry/entry.ts
@@ -15,6 +15,7 @@
 import { Component } from '@angular/core';
 import { IonicPage, NavParams } from 'ionic-angular';
 import { CoreDomUtilsProvider } from '@providers/utils/dom';
+import { CoreRatingInfo } from '@core/rating/providers/rating';
 import { AddonModGlossaryProvider } from '../../providers/glossary';
 
 /**
@@ -29,9 +30,11 @@ export class AddonModGlossaryEntryPage {
     component = AddonModGlossaryProvider.COMPONENT;
     componentId: number;
     entry: any;
+    glossary: any;
     loaded = false;
     showAuthor = false;
     showDate = false;
+    ratingInfo: CoreRatingInfo;
 
     protected courseId: number;
     protected entryId: number;
@@ -80,11 +83,13 @@ export class AddonModGlossaryEntryPage {
      */
     protected fetchEntry(refresh?: boolean): Promise<any> {
         return this.glossaryProvider.getEntry(this.entryId).then((result) => {
-            this.entry = result;
+            this.entry = result.entry;
+            this.ratingInfo = result.ratinginfo;
 
             if (!refresh) {
                 // Load the glossary.
                 return this.glossaryProvider.getGlossaryById(this.courseId, this.entry.glossaryid).then((glossary) => {
+                    this.glossary = glossary;
                     this.componentId = glossary.coursemodule;
 
                     switch (glossary.displayformat) {
@@ -109,4 +114,11 @@ export class AddonModGlossaryEntryPage {
             return Promise.reject(null);
         });
     }
+
+    /**
+     * Function called when rating is updated online.
+     */
+    ratingUpdated(): void {
+        this.glossaryProvider.invalidateEntry(this.entryId);
+    }
 }
diff --git a/src/addon/mod/glossary/providers/entry-link-handler.ts b/src/addon/mod/glossary/providers/entry-link-handler.ts
index 137ccca00..953aeb41a 100644
--- a/src/addon/mod/glossary/providers/entry-link-handler.ts
+++ b/src/addon/mod/glossary/providers/entry-link-handler.ts
@@ -61,8 +61,8 @@ export class AddonModGlossaryEntryLinkHandler extends CoreContentLinksHandlerBas
                         this.domUtils.showErrorModalDefault(error, 'addon.mod_glossary.errorloadingentry', true);
 
                         return Promise.reject(null);
-                    }).then((entry) => {
-                        return this.courseHelper.getModuleCourseIdByInstance(entry.glossaryid, 'glossary', siteId);
+                    }).then((response) => {
+                        return this.courseHelper.getModuleCourseIdByInstance(response.entry.glossaryid, 'glossary', siteId);
                     });
                 }
 
diff --git a/src/addon/mod/glossary/providers/glossary.ts b/src/addon/mod/glossary/providers/glossary.ts
index da906180c..a4014f0d0 100644
--- a/src/addon/mod/glossary/providers/glossary.ts
+++ b/src/addon/mod/glossary/providers/glossary.ts
@@ -21,6 +21,7 @@ import { CoreSitesProvider } from '@providers/sites';
 import { CoreTextUtilsProvider } from '@providers/utils/text';
 import { CoreUtilsProvider } from '@providers/utils/utils';
 import { CoreCourseLogHelperProvider } from '@core/course/providers/log-helper';
+import { CoreRatingInfo } from '@core/rating/providers/rating';
 import { AddonModGlossaryOfflineProvider } from './offline';
 
 /**
@@ -489,7 +490,7 @@ export class AddonModGlossaryProvider {
      * @param  {string} [siteId] Site ID. If not defined, current site.
      * @return {Promise<any>}    Promise resolved with the entry.
      */
-    getEntry(entryId: number, siteId?: string): Promise<any> {
+    getEntry(entryId: number, siteId?: string): Promise<{entry: any, ratinginfo: CoreRatingInfo}> {
         return this.sitesProvider.getSite(siteId).then((site) => {
             const params = {
                 id: entryId
@@ -500,7 +501,7 @@ export class AddonModGlossaryProvider {
 
             return site.read('mod_glossary_get_entry_by_id', params, preSets).then((response) => {
                 if (response && response.entry) {
-                    return response.entry;
+                    return response;
                 } else {
                     return Promise.reject(null);
                 }
@@ -615,31 +616,35 @@ export class AddonModGlossaryProvider {
      *
      * @param  {any}     glossary          The glossary object.
      * @param  {boolean} [onlyEntriesList] If true, entries won't be invalidated.
+     * @param  {string}  [siteId]          Site ID. If not defined, current site.
      * @return {Promise<any>}              Promise resolved when data is invalidated.
      */
-    invalidateGlossaryEntries(glossary: any, onlyEntriesList?: boolean): Promise<any> {
+    invalidateGlossaryEntries(glossary: any, onlyEntriesList?: boolean, siteId?: string): Promise<any> {
+        siteId = siteId || this.sitesProvider.getCurrentSiteId();
+
         const promises = [];
 
         if (!onlyEntriesList) {
-            promises.push(this.fetchAllEntries(this.getEntriesByLetter, [glossary.id, 'ALL'], true).then((entries) => {
-                return this.invalidateEntries(entries);
+            promises.push(this.fetchAllEntries(this.getEntriesByLetter, [glossary.id, 'ALL'], true, siteId).then((entries) => {
+                return this.invalidateEntries(entries, siteId);
             }));
         }
 
         glossary.browsemodes.forEach((mode) => {
             switch (mode) {
                 case 'letter':
-                    promises.push(this.invalidateEntriesByLetter(glossary.id, 'ALL'));
+                    promises.push(this.invalidateEntriesByLetter(glossary.id, 'ALL', siteId));
                     break;
                 case 'cat':
-                    promises.push(this.invalidateEntriesByCategory(glossary.id, AddonModGlossaryProvider.SHOW_ALL_CATERGORIES));
+                    promises.push(this.invalidateEntriesByCategory(glossary.id, AddonModGlossaryProvider.SHOW_ALL_CATERGORIES,
+                            siteId));
                     break;
                 case 'date':
-                    promises.push(this.invalidateEntriesByDate(glossary.id, 'CREATION', 'DESC'));
-                    promises.push(this.invalidateEntriesByDate(glossary.id, 'UPDATE', 'DESC'));
+                    promises.push(this.invalidateEntriesByDate(glossary.id, 'CREATION', 'DESC', siteId));
+                    promises.push(this.invalidateEntriesByDate(glossary.id, 'UPDATE', 'DESC', siteId));
                     break;
                 case 'author':
-                    promises.push(this.invalidateEntriesByAuthor(glossary.id, 'ALL', 'LASTNAME', 'ASC'));
+                    promises.push(this.invalidateEntriesByAuthor(glossary.id, 'ALL', 'LASTNAME', 'ASC', siteId));
                     break;
                 default:
             }
diff --git a/src/addon/mod/glossary/providers/prefetch-handler.ts b/src/addon/mod/glossary/providers/prefetch-handler.ts
index cb4e8ac9d..024fece96 100644
--- a/src/addon/mod/glossary/providers/prefetch-handler.ts
+++ b/src/addon/mod/glossary/providers/prefetch-handler.ts
@@ -23,6 +23,7 @@ import { CoreCourseProvider } from '@core/course/providers/course';
 import { CoreCourseActivityPrefetchHandlerBase } from '@core/course/classes/activity-prefetch-handler';
 import { CoreUserProvider } from '@core/user/providers/user';
 import { AddonModGlossaryProvider } from './glossary';
+import { CoreRatingProvider } from '@core/rating/providers/rating';
 
 /**
  * Handler to prefetch forums.
@@ -42,6 +43,7 @@ export class AddonModGlossaryPrefetchHandler extends CoreCourseActivityPrefetchH
             sitesProvider: CoreSitesProvider,
             domUtils: CoreDomUtilsProvider,
             private userProvider: CoreUserProvider,
+            private ratingProvider: CoreRatingProvider,
             private glossaryProvider: AddonModGlossaryProvider) {
 
         super(translate, appProvider, utils, courseProvider, filepoolProvider, sitesProvider, domUtils);
@@ -164,7 +166,11 @@ export class AddonModGlossaryPrefetchHandler extends CoreCourseActivityPrefetchH
                 // Fetch user avatars.
                 entries.forEach((entry) => {
                     // Fetch individual entries.
-                    promises.push(this.glossaryProvider.getEntry(entry.id, siteId));
+                    promises.push(this.glossaryProvider.getEntry(entry.id, siteId).then((entry) => {
+                        // Fetch individual ratings.
+                        return this.ratingProvider.prefetchRatings('module', module.id, glossary.scale, courseId, entry.ratinginfo,
+                            siteId);
+                    }));
 
                     userIds.push(entry.userid);
                 });
@@ -177,6 +183,8 @@ export class AddonModGlossaryPrefetchHandler extends CoreCourseActivityPrefetchH
 
                 return Promise.all(promises);
             }));
+
+            return Promise.all(promises);
         });
     }
 }
diff --git a/src/addon/mod/glossary/providers/sync.ts b/src/addon/mod/glossary/providers/sync.ts
index 571745698..3a0dbe0e2 100644
--- a/src/addon/mod/glossary/providers/sync.ts
+++ b/src/addon/mod/glossary/providers/sync.ts
@@ -29,6 +29,7 @@ import { CoreUtilsProvider } from '@providers/utils/utils';
 import { AddonModGlossaryProvider } from './glossary';
 import { AddonModGlossaryHelperProvider } from './helper';
 import { AddonModGlossaryOfflineProvider } from './offline';
+import { CoreRatingSyncProvider } from '@core/rating/providers/sync';
 
 /**
  * Service to sync glossaries.
@@ -54,7 +55,8 @@ export class AddonModGlossarySyncProvider extends CoreSyncBaseProvider {
             private glossaryProvider: AddonModGlossaryProvider,
             private glossaryHelper: AddonModGlossaryHelperProvider,
             private glossaryOffline: AddonModGlossaryOfflineProvider,
-            private logHelper: CoreCourseLogHelperProvider) {
+            private logHelper: CoreCourseLogHelperProvider,
+            private ratingSync: CoreRatingSyncProvider) {
 
         super('AddonModGlossarySyncProvider', loggerProvider, sitesProvider, appProvider, syncProvider, textUtils, translate,
                 timeUtils);
@@ -79,8 +81,12 @@ export class AddonModGlossarySyncProvider extends CoreSyncBaseProvider {
      * @return {Promise<any>}    Promise resolved if sync is successful, rejected if sync fails.
      */
     protected syncAllGlossariesFunc(siteId?: string): Promise<any> {
+        siteId = siteId || this.sitesProvider.getCurrentSiteId();
+
+        const promises = [];
+
         // Sync all new entries
-        return this.glossaryOffline.getAllNewEntries(siteId).then((entries) => {
+        promises.push(this.glossaryOffline.getAllNewEntries(siteId).then((entries) => {
             const promises = {};
 
             // Do not sync same glossary twice.
@@ -106,7 +112,11 @@ export class AddonModGlossarySyncProvider extends CoreSyncBaseProvider {
 
             // Promises will be an object so, convert to an array first;
             return Promise.all(this.utils.objectToArray(promises));
-        });
+        }));
+
+        promises.push(this.syncRatings(undefined, siteId));
+
+        return Promise.all(promises);
     }
 
     /**
@@ -241,6 +251,50 @@ export class AddonModGlossarySyncProvider extends CoreSyncBaseProvider {
         return this.addOngoingSync(syncId, syncPromise, siteId);
     }
 
+    /**
+     * Synchronize offline ratings.
+     *
+     * @param {number} [cmId] Course module to be synced. If not defined, sync all glossaries.
+     * @param {string} [siteId] Site ID. If not defined, current site.
+     * @return {Promise<any>} Promise resolved if sync is successful, rejected otherwise.
+     */
+    syncRatings(cmId?: number, siteId?: string): Promise<any> {
+        siteId = siteId || this.sitesProvider.getCurrentSiteId();
+
+         return this.ratingSync.syncRatings('mod_glossary', 'entry', 'module', cmId, 0, siteId).then((results) => {
+            let updated = false;
+            const warnings = [];
+            const promises = [];
+
+            results.forEach((result) => {
+                if (result.updated.length) {
+                    updated = true;
+
+                    // Invalidate entry of updated ratings.
+                    result.updated.forEach((itemId) => {
+                        promises.push(this.glossaryProvider.invalidateEntry(itemId, siteId));
+                    });
+                }
+                if (result.warnings.length) {
+                    promises.push(this.glossaryProvider.getGlossary(result.itemSet.courseId, result.itemSet.instanceId, siteId)
+                            .then((glossary) => {
+                        result.warnings.forEach((warning) => {
+                            warnings.push(this.translate.instant('core.warningofflinedatadeleted', {
+                                component: this.componentTranslate,
+                                name: glossary.name,
+                                error: warning
+                            }));
+                        });
+                    }));
+                }
+            });
+
+            return this.utils.allPromises(promises).then(() => {
+                return { updated, warnings };
+            });
+        });
+    }
+
     /**
      * Delete a new entry.
      *
diff --git a/src/core/rating/providers/sync.ts b/src/core/rating/providers/sync.ts
index cffa42d42..0f34ce359 100644
--- a/src/core/rating/providers/sync.ts
+++ b/src/core/rating/providers/sync.ts
@@ -63,7 +63,7 @@ export class CoreRatingSyncProvider extends CoreSyncBaseProvider {
      * @return {Promise<any>} Promise resolved if sync is successful, rejected if sync fails.
      */
     syncRatings(component: string, ratingArea: string, contextLevel?: string, instanceId?: number, itemSetId?: number,
-            siteId?: string): Promise<{itemSet: CoreRatingItemSet, updated: boolean, warnings: string[]}[]> {
+            siteId?: string): Promise<{itemSet: CoreRatingItemSet, updated: number[], warnings: string[]}[]> {
         siteId = siteId || this.sitesProvider.getCurrentSiteId();
 
         return this.ratingOffline.getItemSets(component, ratingArea, contextLevel, instanceId, itemSetId, siteId)
@@ -102,7 +102,7 @@ export class CoreRatingSyncProvider extends CoreSyncBaseProvider {
      * @return {Promise<any>} Promise resolved when ratings are synced or if it doesn't need to be synced.
      */
     protected syncItemSetIfNeeded(component: string, ratingArea: string,  contextLevel: string, instanceId: number,
-            itemSetId: number, siteId?: string): Promise<{updated: boolean, warnings: string[]}> {
+            itemSetId: number, siteId?: string): Promise<{updated: number[], warnings: string[]}> {
         siteId = siteId || this.sitesProvider.getCurrentSiteId();
 
         const syncId = this.getItemSetSyncId(component, ratingArea, contextLevel, instanceId, itemSetId);
@@ -126,7 +126,7 @@ export class CoreRatingSyncProvider extends CoreSyncBaseProvider {
      * @return {Promise<any>} Promise resolved if sync is successful, rejected otherwise.
      */
     protected syncItemSet(component: string, ratingArea: string, contextLevel: string, instanceId: number, itemSetId: number,
-            siteId?: string): Promise<{updated: boolean, warnings: string[]}> {
+            siteId?: string): Promise<{updated: number[], warnings: string[]}> {
 
         siteId = siteId || this.sitesProvider.getCurrentSiteId();
 
@@ -139,7 +139,7 @@ export class CoreRatingSyncProvider extends CoreSyncBaseProvider {
         this.logger.debug(`Try to sync ratings of component '${component}' rating area '${ratingArea}'` +
             ` context level '${contextLevel}' instance ${instanceId} item set ${itemSetId}`);
 
-        let updated = false;
+        const updated = [];
         const warnings = [];
 
         return this.ratingOffline.getRatings(component, ratingArea, contextLevel, instanceId, itemSetId, siteId).then((ratings) => {
@@ -162,7 +162,7 @@ export class CoreRatingSyncProvider extends CoreSyncBaseProvider {
                         return Promise.reject(error);
                     }
                 }).then(() => {
-                    updated = true;
+                    updated.push(rating.itemid);
 
                     return this.ratingOffline.deleteRating(component, ratingArea, rating.contextlevel, rating.instanceid,
                             rating.itemid, siteId).finally(() => {