diff --git a/lms/static/completion/js/ViewedEvent.js b/lms/static/completion/js/ViewedEvent.js
index 1ad936f8a158..b2b9d5ff5bc4 100644
--- a/lms/static/completion/js/ViewedEvent.js
+++ b/lms/static/completion/js/ViewedEvent.js
@@ -109,7 +109,13 @@ export class ViewedEventTracker {
     constructor() {
         this.elementViewings = new Set();
         this.handlers = [];
-        this.registerDomHandlers();
+        if (window === window.parent) {
+          // Preview (legacy LMS frontend).
+          this.registerDomHandlers();
+        } else {
+          // Learning MFE.
+          window.addEventListener('message', this.handleVisibilityMessage.bind(this));
+        }
     }
 
     /** Add an element to track.  */
@@ -121,7 +127,11 @@ export class ViewedEventTracker {
                 (el, event) => this.callHandlers(el, event),
             ),
         );
-        this.updateVisible();
+        // Update visibility status immediately after adding the element (in case it's already visible).
+        // We don't need this for the Learning MFE because it will send a message once the iframe is loaded.
+        if (window === window.parent) {
+          this.updateVisible();
+        }
     }
 
     /** Register a new handler to be called when an element has been viewed.  */
@@ -177,4 +187,36 @@ export class ViewedEventTracker {
             handler(el, event);
         });
     }
+
+    /** Handle a unit.visibilityStatus message from the Learning MFE. */
+    handleVisibilityMessage(event) {
+        if (event.data.type === 'unit.visibilityStatus') {
+          const { topPosition, viewportHeight } = event.data.data;
+
+          this.elementViewings.forEach((elv) => {
+              const rect = elv.getBoundingRect();
+              let visible = false;
+
+              // Convert iframe-relative rect coordinates to be relative to the parent's viewport.
+              const elTopPosition = rect.top + topPosition;
+              const elBottomPosition = rect.bottom + topPosition;
+
+              // Check if the element is visible in the parent's viewport.
+              if (elTopPosition < viewportHeight && elTopPosition >= 0) {
+                  elv.markTopSeen();
+                  visible = true;
+              }
+              if (elBottomPosition <= viewportHeight && elBottomPosition > 0) {
+                  elv.markBottomSeen();
+                  visible = true;
+              }
+
+              if (visible) {
+                  elv.handleVisible();
+              } else {
+                  elv.handleNotVisible();
+              }
+          });
+      }
+    }
 }
diff --git a/openedx/features/enterprise_support/tests/test_utils.py b/openedx/features/enterprise_support/tests/test_utils.py
index fbf2cccf9dbc..d693f6be72b6 100644
--- a/openedx/features/enterprise_support/tests/test_utils.py
+++ b/openedx/features/enterprise_support/tests/test_utils.py
@@ -269,10 +269,11 @@ def test_update_account_settings_context_for_enterprise(self, mock_get_fields):
         mock_get_fields.assert_called_once_with(user)
         assert expected_context == context
 
+    @ddt.data(settings.ENTERPRISE_READONLY_ACCOUNT_FIELDS, ['username', 'email', 'country'])
     @mock.patch('openedx.features.enterprise_support.utils.get_current_request')
     @mock.patch('openedx.features.enterprise_support.api.enterprise_customer_for_request')
     def test_get_enterprise_readonly_account_fields_no_sync_learner_profile_data(
-            self, mock_customer_for_request, mock_get_current_request,
+            self, readonly_fields, mock_customer_for_request, mock_get_current_request,
     ):
         mock_get_current_request.return_value = mock.Mock(
             GET={'enterprise_customer': 'some-uuid'},
@@ -284,7 +285,8 @@ def test_get_enterprise_readonly_account_fields_no_sync_learner_profile_data(
         }
         user = mock.Mock()
 
-        actual_fields = get_enterprise_readonly_account_fields(user)
+        with override_settings(ENTERPRISE_READONLY_ACCOUNT_FIELDS=readonly_fields):
+            actual_fields = get_enterprise_readonly_account_fields(user)
         assert set() == actual_fields
         mock_customer_for_request.assert_called_once_with(mock_get_current_request.return_value)
         mock_get_current_request.assert_called_once_with()
diff --git a/openedx/features/enterprise_support/utils.py b/openedx/features/enterprise_support/utils.py
index 4604b5c4fb00..6b007ebed57b 100644
--- a/openedx/features/enterprise_support/utils.py
+++ b/openedx/features/enterprise_support/utils.py
@@ -277,7 +277,7 @@ def get_enterprise_readonly_account_fields(user):
     # if user has no `UserSocialAuth` record then allow to edit `fullname`
     # whether the `sync_learner_profile_data` is enabled or disabled
     user_social_auth_record = _user_has_social_auth_record(user, enterprise_customer)
-    if not user_social_auth_record:
+    if not user_social_auth_record and 'name' in enterprise_readonly_account_fields:
         enterprise_readonly_account_fields.remove('name')
 
     sync_learner_profile_data = _get_sync_learner_profile_data(enterprise_customer)