diff --git a/Featurecreep.md b/Featurecreep.md
index 3b9d9e9d..546336b7 100644
--- a/Featurecreep.md
+++ b/Featurecreep.md
@@ -179,6 +179,7 @@ Sorry for some of them being in German, I'll tranlate them at some point.
 * [ ] Teams and users should also have uuids (for users these can be the username)
 * [ ] When giving a team or user access to a list/namespace, they should be reffered to by uuid, not numeric id
 * [ ] Adding users to a team should also use uuid
+* [ ] Check if the team/user really exist before updating them on lists/namespaces
 
 ### Linters