diff --git a/app/celery/scheduled_tasks.py b/app/celery/scheduled_tasks.py
index 77d4b12af..fcc5edf29 100644
--- a/app/celery/scheduled_tasks.py
+++ b/app/celery/scheduled_tasks.py
@@ -223,7 +223,9 @@ def check_templated_letter_state():
         letter_ids = [str(letter.id) for letter in letters]
 
         msg = "{} letters were created before 17.30 yesterday and still have 'created' status. " \
-              "Notifications: {}".format(len(letters), letter_ids)
+            "Follow runbook to resolve: " \
+            "https://github.com/alphagov/notifications-manuals/wiki/Support-Runbook#deal-with-Letters-still-in-created. " \
+            "Notifications: {}".format(len(letters), letter_ids)
 
         current_app.logger.warning(msg)
 
diff --git a/tests/app/celery/test_scheduled_tasks.py b/tests/app/celery/test_scheduled_tasks.py
index 2254fd6f0..ccc5b250a 100644
--- a/tests/app/celery/test_scheduled_tasks.py
+++ b/tests/app/celery/test_scheduled_tasks.py
@@ -370,7 +370,9 @@ def test_check_templated_letter_state_during_bst(mocker, sample_letter_template)
     check_templated_letter_state()
 
     message = "2 letters were created before 17.30 yesterday and still have 'created' status. " \
-              "Notifications: ['{}', '{}']".format(noti_1.id, noti_2.id)
+        "Follow runbook to resolve: " \
+        "https://github.com/alphagov/notifications-manuals/wiki/Support-Runbook#deal-with-Letters-still-in-created. " \
+        "Notifications: ['{}', '{}']".format(noti_1.id, noti_2.id)
 
     mock_logger.assert_called_once_with(message)
     mock_create_ticket.assert_called_with(
@@ -395,7 +397,9 @@ def test_check_templated_letter_state_during_utc(mocker, sample_letter_template)
     check_templated_letter_state()
 
     message = "2 letters were created before 17.30 yesterday and still have 'created' status. " \
-              "Notifications: ['{}', '{}']".format(noti_1.id, noti_2.id)
+        "Follow runbook to resolve: " \
+        "https://github.com/alphagov/notifications-manuals/wiki/Support-Runbook#deal-with-Letters-still-in-created. " \
+        "Notifications: ['{}', '{}']".format(noti_1.id, noti_2.id)
 
     mock_logger.assert_called_once_with(message)
     mock_create_ticket.assert_called_with(