diff --git a/ts/screens/profile/LanguagesPreferencesScreen.tsx b/ts/screens/profile/LanguagesPreferencesScreen.tsx
index 2f1950a90d1..2e39b023d79 100644
--- a/ts/screens/profile/LanguagesPreferencesScreen.tsx
+++ b/ts/screens/profile/LanguagesPreferencesScreen.tsx
@@ -1,7 +1,9 @@
 import { List } from "native-base";
+import * as pot from "italia-ts-commons/lib/pot";
 import * as React from "react";
 import { Alert } from "react-native";
 import { connect } from "react-redux";
+import { fromNullable } from "fp-ts/lib/Option";
 import { Locales, TranslationKeys } from "../../../locales/locales";
 import { withLightModalContext } from "../../components/helpers/withLightModalContext";
 import { ContextualHelpPropsMarkdown } from "../../components/screens/BaseScreenComponent";
@@ -15,12 +17,21 @@ import { preferredLanguageSaveSuccess } from "../../store/actions/persistedPrefe
 import { Dispatch } from "../../store/actions/types";
 import { preferredLanguageSelector } from "../../store/reducers/persistedPreferences";
 import { GlobalState } from "../../store/reducers/types";
-import { getLocalePrimaryWithFallback } from "../../utils/locale";
+import {
+  fromLocaleToPreferredLanguage,
+  getLocalePrimaryWithFallback
+} from "../../utils/locale";
+import { profileUpsert } from "../../store/actions/profile";
+import { withLoadingSpinner } from "../../components/helpers/withLoadingSpinner";
+import { profileSelector } from "../../store/reducers/profile";
+import { showToast } from "../../utils/showToast";
 
 type Props = LightModalContextInterface &
   ReturnType<typeof mapDispatchToProps> &
   ReturnType<typeof mapStateToProps>;
 
+type State = { isLoading: boolean; selectedLocale?: Locales };
+
 const contextualHelpMarkdown: ContextualHelpPropsMarkdown = {
   title: "profile.preferences.language.contextualHelpTitle",
   body: "profile.preferences.language.contextualHelpContent"
@@ -31,13 +42,17 @@ const iconSize = 12;
 /**
  * Allows the user to select one of the available Languages as preferred
  */
-class LanguagesPreferencesScreen extends React.PureComponent<Props> {
-  private isAlreadyPreferred = (language: Locales) => 
+class LanguagesPreferencesScreen extends React.PureComponent<Props, State> {
+  constructor(props: Props) {
+    super(props);
+    this.state = { isLoading: false };
+  }
+
+  private isAlreadyPreferred = (language: Locales) =>
     // if the preferred Lanuage is not set, we check if language is the same in use
-     this.props.preferredLanguage
+    this.props.preferredLanguage
       .map(l => l === language)
-      .getOrElse(getLocalePrimaryWithFallback() === language)
-  ;
+      .getOrElse(getLocalePrimaryWithFallback() === language);
 
   private onLanguageSelected = (language: Locales) => {
     if (!this.isAlreadyPreferred(language)) {
@@ -56,8 +71,9 @@ class LanguagesPreferencesScreen extends React.PureComponent<Props> {
             text: I18n.t("global.buttons.confirm"),
             style: "default",
             onPress: () => {
-              this.props.preferredLanguageSaveSuccess(language);
-              this.showModal();
+              this.setState({ selectedLocale: language }, () => {
+                this.props.upsertProfile(language);
+              });
             }
           }
         ],
@@ -66,6 +82,29 @@ class LanguagesPreferencesScreen extends React.PureComponent<Props> {
     }
   };
 
+  public componentDidUpdate(prevProps: Readonly<Props>) {
+    // start updating
+    if (pot.isUpdating(this.props.profile)) {
+      this.setState({ isLoading: true });
+      return;
+    }
+
+    // update completed
+    if (pot.isUpdating(prevProps.profile) && pot.isSome(this.props.profile)) {
+      this.setState({ isLoading: false });
+      fromNullable(this.state.selectedLocale).map(
+        this.props.preferredLanguageSaveSuccess
+      );
+      this.showModal();
+      return;
+    }
+
+    // update error
+    if (pot.isUpdating(prevProps.profile) && pot.isError(this.props.profile)) {
+      showToast(I18n.t("errors.profileUpdateError"));
+    }
+  }
+
   private showModal() {
     this.props.showModal(
       <AlertModal
@@ -75,7 +114,7 @@ class LanguagesPreferencesScreen extends React.PureComponent<Props> {
   }
 
   public render() {
-    return (
+    const ContainerComponent = withLoadingSpinner(() => (
       <TopScreenComponent
         contextualHelpMarkdown={contextualHelpMarkdown}
         headerTitle={I18n.t("profile.preferences.title")}
@@ -114,12 +153,14 @@ class LanguagesPreferencesScreen extends React.PureComponent<Props> {
           </List>
         </ScreenContent>
       </TopScreenComponent>
-    );
+    ));
+    return <ContainerComponent isLoading={this.state.isLoading} />;
   }
 }
 
 const mapStateToProps = (state: GlobalState) => ({
-  preferredLanguage: preferredLanguageSelector(state)
+  preferredLanguage: preferredLanguageSelector(state),
+  profile: profileSelector(state)
 });
 
 const mapDispatchToProps = (dispatch: Dispatch) => ({
@@ -128,6 +169,12 @@ const mapDispatchToProps = (dispatch: Dispatch) => ({
       preferredLanguageSaveSuccess({
         preferredLanguage: language
       })
+    ),
+  upsertProfile: (language: Locales) =>
+    dispatch(
+      profileUpsert.request({
+        preferred_languages: [fromLocaleToPreferredLanguage(language)]
+      })
     )
 });
 
diff --git a/ts/store/actions/profile.ts b/ts/store/actions/profile.ts
index 0c8ecf03e97..2c0371caa5a 100644
--- a/ts/store/actions/profile.ts
+++ b/ts/store/actions/profile.ts
@@ -10,7 +10,6 @@ import {
   createAsyncAction,
   createStandardAction
 } from "typesafe-actions";
-import { ExtendedProfile } from "../../../definitions/backend/ExtendedProfile";
 import { InitializedProfile } from "../../../definitions/backend/InitializedProfile";
 
 export const resetProfileState = createStandardAction("RESET_PROFILE_STATE")();
@@ -27,7 +26,7 @@ export const profileLoadFailure = createAction(
   resolve => (error: Error) => resolve(error, { error: true })
 );
 
-type ProfileUpsertPayload = Partial<Omit<ExtendedProfile, "version">>;
+type ProfileUpsertPayload = Partial<Omit<InitializedProfile, "version">>;
 
 export const profileUpsert = createAsyncAction(
   "PROFILE_UPSERT_REQUEST",
diff --git a/ts/utils/locale.ts b/ts/utils/locale.ts
index d31fc9706b7..569c97a74e4 100644
--- a/ts/utils/locale.ts
+++ b/ts/utils/locale.ts
@@ -1,6 +1,7 @@
-import { Option, some } from "fp-ts/lib/Option";
+import { fromNullable, Option, some } from "fp-ts/lib/Option";
 import { Locales } from "../../locales/locales";
 import I18n, { translations } from "../i18n";
+import { PreferredLanguageEnum } from "../../definitions/backend/PreferredLanguage";
 /**
  * Helpers for handling locales
  */
@@ -33,3 +34,16 @@ export const getLocalePrimaryWithFallback = (fallback: Locales = "en") =>
     .filter(l => translations.some(t => t.toLowerCase() === l.toLowerCase()))
     .map(s => s as Locales)
     .getOrElse(fallback);
+
+const localePreferredLanguageMapping = new Map<Locales, PreferredLanguageEnum>([
+  ["it", PreferredLanguageEnum.it_IT],
+  ["en", PreferredLanguageEnum.en_GB]
+]);
+
+// from a given Locales return the relative PreferredLanguageEnum (fallback is en_GB)
+export const fromLocaleToPreferredLanguage = (
+  locale: Locales
+): PreferredLanguageEnum =>
+  fromNullable(localePreferredLanguageMapping.get(locale)).getOrElse(
+    PreferredLanguageEnum.en_GB
+  );