diff --git a/docs/clmc-service.md b/docs/clmc-service.md
index 4a87b60ebb670abfe0225a3c91fafb917919d3f2..bc5d6723d7c32077334b07865661e8f7f80357cb 100644
--- a/docs/clmc-service.md
+++ b/docs/clmc-service.md
@@ -228,7 +228,7 @@ with **/clmc-service** so that the nginx reverse proxy server (listening on port
         The response of this request is a JSON content, which contains a generated UUID and the database name. 
         This request UUID can then be used to manage the pipeline script (e.g. stopping it).
 
-        Returns a 400 Bad Request error if the request body is invalid.
+        Returns a 400 Bad Request error if the request body is invalid or the graph network topology has not been built, yet.
      
     * Response Body Example: