diff --git a/api/users/views.py b/api/users/views.py
index b920798be86..b887ee7bdd6 100644
--- a/api/users/views.py
+++ b/api/users/views.py
@@ -755,7 +755,11 @@ def post(self, request, *args, **kwargs):
             # 1. update user oauth, with pending status
             external_identity[external_id_provider][external_id] = 'LINK'
             if external_id_provider in user.external_identity:
-                user.external_identity[external_id_provider].update(external_identity[external_id_provider])
+                # v1 looks to be used because of /confirm/external/ usage for auth but add orcid external identity rewrite updates for v2 as well
+                if external_id_provider == settings.EXTERNAL_IDENTITY_PROFILE.get('OrcidProfile'):
+                    user.external_identity[external_id_provider] = external_identity[external_id_provider]
+                else:
+                    user.external_identity[external_id_provider].update(external_identity[external_id_provider])
             else:
                 user.external_identity.update(external_identity)
             if not user.accepted_terms_of_service and accepted_terms_of_service:
@@ -1153,7 +1157,6 @@ class ConfirmEmailView(generics.CreateAPIView):
 
     def _process_external_identity(self, user, external_identity, service_url):
         """Handle all external_identity logic, including task enqueueing and url updates."""
-
         provider = next(iter(external_identity))
         if provider not in user.external_identity:
             raise ValidationError('External-ID provider mismatch.')
diff --git a/api_tests/users/views/test_user_external_login.py b/api_tests/users/views/test_user_external_login.py
index 6f436f5d422..fca05aadbc8 100644
--- a/api_tests/users/views/test_user_external_login.py
+++ b/api_tests/users/views/test_user_external_login.py
@@ -48,7 +48,7 @@ def csrf_token(self):
     @pytest.fixture()
     def session_data(self):
         session = SessionStore()
-        session['auth_user_external_id_provider'] = 'orcid'
+        session['auth_user_external_id_provider'] = 'ORCID'
         session['auth_user_external_id'] = '1234-1234-1234-1234'
         session['auth_user_fullname'] = 'external login'
         session['auth_user_external_first_login'] = True
@@ -62,7 +62,7 @@ def test_external_login(self, app, payload, url, session_data, csrf_token):
         with capture_notifications():
             res = app.post_json_api(url, payload, headers={'X-CSRFToken': csrf_token})
         assert res.status_code == 200
-        assert res.json == {'external_id_provider': 'orcid', 'auth_user_fullname': 'external login'}
+        assert res.json == {'external_id_provider': 'ORCID', 'auth_user_fullname': 'external login'}
         assert not OSFUser.objects.get(username='freddie@mercury.com').is_confirmed
 
     def test_invalid_payload(self, app, url, session_data, csrf_token):
@@ -84,6 +84,24 @@ def test_existing_user(self, app, payload, url, user_one, session_data, csrf_tok
         with capture_notifications():
             res = app.post_json_api(url, payload, headers={'X-CSRFToken': csrf_token})
         assert res.status_code == 200
-        assert res.json == {'external_id_provider': 'orcid', 'auth_user_fullname': 'external login'}
+        assert res.json == {'external_id_provider': 'ORCID', 'auth_user_fullname': 'external login'}
         user_one.reload()
         assert user_one.username in user_one.unconfirmed_emails
+
+    def test_existing_user_orcid_overwrites(self, app, payload, url, user_one, session_data, csrf_token):
+        user_one.external_identity = {
+            'ORCID': {
+                '0000-0000-0000-0000': 'LINK',
+            }
+        }
+        user_one.save()
+        app.set_cookie(CSRF_COOKIE_NAME, csrf_token)
+        app.set_cookie(settings.COOKIE_NAME, str(session_data))
+        assert user_one.external_identity['ORCID'] == {'0000-0000-0000-0000': 'LINK'}
+        assert '0000-0000-0000-0000' in user_one.external_identity['ORCID']
+        payload['data']['attributes']['email'] = user_one.username
+        with capture_notifications():
+            res = app.post_json_api(url, payload, headers={'X-CSRFToken': csrf_token})
+        assert res.status_code == 200
+        user_one.reload()
+        assert user_one.external_identity['ORCID'] == {'1234-1234-1234-1234': 'LINK'}
diff --git a/framework/auth/views.py b/framework/auth/views.py
index aefb1b4f0e8..c40605ca512 100644
--- a/framework/auth/views.py
+++ b/framework/auth/views.py
@@ -1097,7 +1097,11 @@ def external_login_email_post():
             # 1. update user oauth, with pending status
             external_identity[external_id_provider][external_id] = 'LINK'
             if external_id_provider in user.external_identity:
-                user.external_identity[external_id_provider].update(external_identity[external_id_provider])
+                # v1 looks to be used because of /confirm/external/ usage for auth but add orcid external identity rewrite updates for v2 as well
+                if external_id_provider == settings.EXTERNAL_IDENTITY_PROFILE.get('OrcidProfile'):
+                    user.external_identity[external_id_provider] = external_identity[external_id_provider]
+                else:
+                    user.external_identity[external_id_provider].update(external_identity[external_id_provider])
             else:
                 user.external_identity.update(external_identity)
             if not user.accepted_terms_of_service and form.accepted_terms_of_service.data: