diff --git a/assets/javascripts/discourse/components/user-menu/assigns-list.js b/assets/javascripts/discourse/components/user-menu/assigns-list.js
index 5868164..a7dce4d 100644
--- a/assets/javascripts/discourse/components/user-menu/assigns-list.js
+++ b/assets/javascripts/discourse/components/user-menu/assigns-list.js
@@ -5,6 +5,7 @@ import UserMenuAssignItem from "discourse/plugins/discourse-assign/discourse-ass
 import Notification from "discourse/models/notification";
 import I18n from "I18n";
 import showModal from "discourse/lib/show-modal";
+import Topic from "discourse/models/topic";
 
 export default class UserMenuAssignNotificationsList extends UserMenuNotificationsList {
   get dismissTypes() {
@@ -35,25 +36,27 @@ export default class UserMenuAssignNotificationsList extends UserMenuNotificatio
     return "user-menu/assigns-list-empty-state";
   }
 
-  fetchItems() {
-    return ajax("/assign/user-menu-assigns.json").then((data) => {
-      const content = [];
-      data.notifications.forEach((rawNotification) => {
-        const notification = Notification.create(rawNotification);
-        content.push(
-          new UserMenuNotificationItem({
-            notification,
-            currentUser: this.currentUser,
-            siteSettings: this.siteSettings,
-            site: this.site,
-          })
-        );
-      });
+  async fetchItems() {
+    const data = await ajax("/assign/user-menu-assigns.json");
+    const content = [];
+
+    const notifications = data.notifications.map((n) => Notification.create(n));
+    await Notification.applyTransformations(notifications);
+    notifications.forEach((notification) => {
       content.push(
-        ...data.topics.map((assign) => new UserMenuAssignItem({ assign }))
+        new UserMenuNotificationItem({
+          notification,
+          currentUser: this.currentUser,
+          siteSettings: this.siteSettings,
+          site: this.site,
+        })
       );
-      return content;
     });
+
+    const topics = data.topics.map((t) => Topic.create(t));
+    await Topic.applyTransformations(topics);
+    content.push(...topics.map((assign) => new UserMenuAssignItem({ assign })));
+    return content;
   }
 
   dismissWarningModal() {
diff --git a/test/javascripts/acceptance/assigns-tab-user-menu-test.js b/test/javascripts/acceptance/assigns-tab-user-menu-test.js
index 8ef8a37..54ca976 100644
--- a/test/javascripts/acceptance/assigns-tab-user-menu-test.js
+++ b/test/javascripts/acceptance/assigns-tab-user-menu-test.js
@@ -8,6 +8,7 @@ import {
 import { click, visit } from "@ember/test-helpers";
 import { test } from "qunit";
 import I18n from "I18n";
+import { withPluginApi } from "discourse/lib/plugin-api";
 
 const USER_MENU_ASSIGN_RESPONSE = {
   notifications: [
@@ -448,4 +449,37 @@ acceptance("Discourse Assign | experimental user menu", function (needs) {
       "empty state body has user-plus icon"
     );
   });
+
+  test("assigns tab applies model transformations", async function (assert) {
+    withPluginApi("0.1", (api) => {
+      api.registerModelTransformer("notification", (notifications) => {
+        notifications.forEach((notification) => {
+          notification.fancy_title = `notificationModelTransformer ${notification.fancy_title}`;
+        });
+      });
+      api.registerModelTransformer("topic", (topics) => {
+        topics.forEach((topic) => {
+          topic.fancy_title = `topicModelTransformer ${topic.fancy_title}`;
+        });
+      });
+    });
+
+    await visit("/");
+    await click(".d-header-icons .current-user");
+    await click("#user-menu-button-assign-list");
+
+    const notifications = queryAll(
+      "#quick-access-assign-list ul li.notification"
+    );
+    assert.strictEqual(
+      notifications[0].textContent.replace(/\s+/g, " ").trim(),
+      "tony notificationModelTransformer Test poll topic please bear with me"
+    );
+
+    const assigns = queryAll("#quick-access-assign-list ul li.assign");
+    assert.strictEqual(
+      assigns[0].textContent.replace(/\s+/g, " ").trim(),
+      "topicModelTransformer Howdy this my test topic with emoji !"
+    );
+  });
 });