diff --git a/app/notify_client/service_api_client.py b/app/notify_client/service_api_client.py
index 1f5e74d16..73ac7b6f3 100644
--- a/app/notify_client/service_api_client.py
+++ b/app/notify_client/service_api_client.py
@@ -500,5 +500,8 @@ class ServiceAPIClient(NotifyAdminAPIClient):
     def get_service_data_retention(self, service_id):
         return self.get("/service/{}/data-retention".format(service_id))
 
+    def get_service_data_retention_by_notification_type(self, service_id, notification_type):
+        return self.get("/service/{}/data-retention/notification-type/{}".format(service_id, notification_type))
+
     def get_service_data_retention_by_id(self, service_id, data_retention_id):
         return self.get("service/{}/data-retention/{}".format(service_id, data_retention_id))
diff --git a/tests/app/main/views/test_activity.py b/tests/app/main/views/test_activity.py
index 74d2e0c6b..5a0c2e397 100644
--- a/tests/app/main/views/test_activity.py
+++ b/tests/app/main/views/test_activity.py
@@ -70,6 +70,7 @@ def test_can_show_notifications(
     service_one,
     mock_get_notifications,
     mock_get_service_statistics,
+    mock_get_service_data_retention_by_notification_type,
     mock_has_no_jobs,
     user,
     extra_args,
@@ -194,6 +195,7 @@ def test_link_to_download_notifications(
     fake_uuid,
     mock_get_notifications,
     mock_get_service_statistics,
+    mock_get_service_data_retention_by_notification_type,
     mock_has_no_jobs,
     user,
     query_parameters,
@@ -229,6 +231,7 @@ def test_letters_with_status_virus_scan_failed_shows_a_failure_description(
     logged_in_client,
     service_one,
     mock_get_service_statistics,
+    mock_get_service_data_retention_by_notification_type,
 ):
     mock_get_notifications(
         mocker,
@@ -258,6 +261,7 @@ def test_should_not_show_preview_link_for_precompiled_letters_in_virus_states(
     logged_in_client,
     service_one,
     mock_get_service_statistics,
+    mock_get_service_data_retention_by_notification_type,
     letter_status,
 ):
     mock_get_notifications(
@@ -280,6 +284,7 @@ def test_should_not_show_preview_link_for_precompiled_letters_in_virus_states(
 def test_shows_message_when_no_notifications(
     client_request,
     mock_get_service_statistics,
+    mock_get_service_data_retention_by_notification_type,
     mock_get_notifications_with_no_notifications,
 ):
 
@@ -341,6 +346,7 @@ def test_search_recipient_form(
     logged_in_client,
     mock_get_notifications,
     mock_get_service_statistics,
+    mock_get_service_data_retention_by_notification_type,
     initial_query_arguments,
     form_post_data,
     expected_search_box_label,
@@ -382,6 +388,7 @@ def test_should_show_notifications_for_a_service_with_next_previous(
     active_user_with_permissions,
     mock_get_notifications_with_previous_next,
     mock_get_service_statistics,
+    mock_get_service_data_retention_by_notification_type,
     mocker,
 ):
     response = logged_in_client.get(url_for(
@@ -462,6 +469,7 @@ def test_html_contains_notification_id(
     active_user_with_permissions,
     mock_get_notifications,
     mock_get_service_statistics,
+    mock_get_service_data_retention_by_notification_type,
     mocker,
 ):
     response = logged_in_client.get(url_for(
@@ -482,6 +490,7 @@ def test_redacts_templates_that_should_be_redacted(
     mocker,
     active_user_with_permissions,
     mock_get_service_statistics,
+    mock_get_service_data_retention_by_notification_type,
 ):
     mock_get_notifications(
         mocker,
@@ -514,6 +523,7 @@ def test_big_numbers_and_search_dont_show_for_letters(
     mock_get_notifications,
     active_user_with_permissions,
     mock_get_service_statistics,
+    mock_get_service_data_retention_by_notification_type,
     message_type,
     tablist_visible,
     search_bar_visible
@@ -543,6 +553,7 @@ def test_sending_status_hint_does_not_include_status_for_letters(
     service_one,
     active_user_with_permissions,
     mock_get_service_statistics,
+    mock_get_service_data_retention_by_notification_type,
     message_type,
     hint_status_visible,
     mocker
@@ -570,6 +581,7 @@ def test_should_expected_hint_for_letters(
     service_one,
     active_user_with_permissions,
     mock_get_service_statistics,
+    mock_get_service_data_retention_by_notification_type,
     mocker,
     fake_uuid,
     is_precompiled_letter,
diff --git a/tests/conftest.py b/tests/conftest.py
index dc642a0b5..2683c6533 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -533,6 +533,14 @@ def mock_get_service_statistics(mocker, api_user_active):
     return mocker.patch('app.service_api_client.get_service_statistics', side_effect=_get)
 
 
+@pytest.fixture(scope='function')
+def mock_get_service_data_retention_by_notification_type(mocker, api_user_active):
+    def _get(service_id, notification_type):
+        return {}
+
+    return mocker.patch('app.service_api_client.get_service_data_retention_by_notification_type', side_effect=_get)
+
+
 @pytest.fixture(scope='function')
 def mock_get_detailed_services(mocker, fake_uuid):
     service_one = service_json(