diff --git a/awx/api/templates/api/inventory_inventory_sources_update.md b/awx/api/templates/api/inventory_inventory_sources_update.md
index f0f6d338d8..709b53afbf 100644
--- a/awx/api/templates/api/inventory_inventory_sources_update.md
+++ b/awx/api/templates/api/inventory_inventory_sources_update.md
@@ -20,7 +20,7 @@ inventory sources:
 * `project_update`: ID of the project update job that was started if this inventory source is an SCM source.
   (interger, read-only, optional)
 
-Note: All manual inventory sources (source=' ') will be ignored by the update_inventory_sources endpoint.  This endpoint will not update inventory sources for Smart Inventories.  
+Note: All manual inventory sources (source="") will be ignored by the update_inventory_sources endpoint.  This endpoint will not update inventory sources for Smart Inventories.  
 
 
 Response code from this action will be:
diff --git a/awx/api/views.py b/awx/api/views.py
index 469c491d75..be4d0db14c 100644
--- a/awx/api/views.py
+++ b/awx/api/views.py
@@ -2511,7 +2511,7 @@ class InventoryInventorySourcesUpdate(RetrieveAPIView):
         successes = 0
         failures = 0
         if inventory.kind =='smart':
-            return Response(dict(error=_("Action cannot be completed with Smart Inventory.")), status=status.HTTP_400_BAD_REQUEST)
+            return Response(dict(error=_("Inventory update cannot be completed with Smart Inventory.")), status=status.HTTP_400_BAD_REQUEST)
         for inventory_source in inventory.inventory_sources.exclude(source=''):
             details = {'inventory_source': inventory_source.pk, 'status': None}
             can_update = inventory_source.can_update