diff --git a/addons/mail/static/src/models/notification_request_view.js b/addons/mail/static/src/models/notification_request_view.js
index d8ed5b71120..aa694e2383f 100644
--- a/addons/mail/static/src/models/notification_request_view.js
+++ b/addons/mail/static/src/models/notification_request_view.js
@@ -2,6 +2,7 @@
 
 import { registerModel } from '@mail/model/model_core';
 import { attr, one } from '@mail/model/model_field';
+import { clear } from '@mail/model/model_field_command';
 
 import { sprintf } from '@web/core/utils/strings';
 
@@ -11,9 +12,12 @@ registerModel({
     recordMethods: {
         /**
          * @private
-         * @returns {string}
+         * @returns {string|FieldCommand}
          */
         _computeHeaderText() {
+            if (!this.messaging.partnerRoot) {
+                return clear();
+            }
             return sprintf(
                 this.env._t("%(odoobotName)s has a request"),
                 { odoobotName: this.messaging.partnerRoot.nameOrDisplayName },
diff --git a/addons/mail/static/tests/qunit_suite_tests/components/messaging_menu_tests.js b/addons/mail/static/tests/qunit_suite_tests/components/messaging_menu_tests.js
index f58edc302b0..788a72075f2 100644
--- a/addons/mail/static/tests/qunit_suite_tests/components/messaging_menu_tests.js
+++ b/addons/mail/static/tests/qunit_suite_tests/components/messaging_menu_tests.js
@@ -109,6 +109,12 @@ QUnit.test('messaging becomes initialized', async function (assert) {
 QUnit.test('basic rendering', async function (assert) {
     assert.expect(21);
 
+    patchWithCleanup(browser, {
+        Notification: {
+            ...browser.Notification,
+            permission: 'denied',
+        },
+    });
     const { click, createMessagingMenuComponent } = await start();
     await createMessagingMenuComponent();
     assert.strictEqual(
@@ -234,6 +240,12 @@ QUnit.test('basic rendering', async function (assert) {
 QUnit.test('counter is taking into account failure notification', async function (assert) {
     assert.expect(2);
 
+    patchWithCleanup(browser, {
+        Notification: {
+            ...browser.Notification,
+            permission: 'denied',
+        },
+    });
     const pyEnv = await startServer();
     const mailChannelId1 = pyEnv['mail.channel'].create();
     const mailMessageId1 = pyEnv['mail.message'].create({
diff --git a/addons/mail/static/tests/qunit_suite_tests/models/messaging_menu_tests.js b/addons/mail/static/tests/qunit_suite_tests/models/messaging_menu_tests.js
index 195162f0b86..c0c7c553352 100644
--- a/addons/mail/static/tests/qunit_suite_tests/models/messaging_menu_tests.js
+++ b/addons/mail/static/tests/qunit_suite_tests/models/messaging_menu_tests.js
@@ -2,6 +2,9 @@
 
 import { start } from '@mail/../tests/helpers/test_utils';
 
+import { browser } from '@web/core/browser/browser';
+import { patchWithCleanup } from '@web/../tests/helpers/utils';
+
 QUnit.module('mail', {}, function () {
 QUnit.module('models', {}, function () {
 QUnit.module('messaging_menu_tests.js');
@@ -9,6 +12,12 @@ QUnit.module('messaging_menu_tests.js');
 QUnit.test('messaging menu counter should ignore unread messages in channels that are unpinned', async function (assert) {
     assert.expect(1);
 
+    patchWithCleanup(browser, {
+        Notification: {
+            ...browser.Notification,
+            permission: 'denied',
+        },
+    });
     const { messaging } = await start();
     messaging.models['Thread'].create({
         id: 31,
diff --git a/addons/mail/static/tests/qunit_suite_tests/widgets/notification_alert_tests.js b/addons/mail/static/tests/qunit_suite_tests/widgets/notification_alert_tests.js
index 7eca2f869ad..d6109aa3a0a 100644
--- a/addons/mail/static/tests/qunit_suite_tests/widgets/notification_alert_tests.js
+++ b/addons/mail/static/tests/qunit_suite_tests/widgets/notification_alert_tests.js
@@ -18,7 +18,10 @@ QUnit.skip('notification_alert widget: display blocked notification alert', asyn
     assert.expect(1);
 
     patchWithCleanup(browser, {
-        Notification: 'denied',
+        Notification: {
+            ...browser.Notification,
+            permission: 'denied',
+        },
     });
     await start({
         arch: `