diff --git a/docs/explore-and-author/graph-exploration/building-a-customized-user-interface/workflow-trigger/index.md b/docs/explore-and-author/graph-exploration/building-a-customized-user-interface/workflow-trigger/index.md
index a89ad71f..049aab57 100644
--- a/docs/explore-and-author/graph-exploration/building-a-customized-user-interface/workflow-trigger/index.md
+++ b/docs/explore-and-author/graph-exploration/building-a-customized-user-interface/workflow-trigger/index.md
@@ -14,6 +14,7 @@ Workflow trigger are associated to Node Shapes by defining special-purpose non-v
 
 ## Setup
 
+To specify the DataIntegration workflow which should be executed via the shape element, a Workflow Trigger resource has to be created first.
 Workflow Trigger can be defined and used in any active [Shape Catalog](../index.md) (active means, it is imported from the main Shape Catalog).
 A workflow trigger resource references a data integration workflow by URI.