diff --git a/engineering-guide/accounts-and-groups.md b/engineering-guide/accounts-and-groups.md
index e79ef17..440a4d7 100644
--- a/engineering-guide/accounts-and-groups.md
+++ b/engineering-guide/accounts-and-groups.md
@@ -30,6 +30,10 @@ To be able to easily distinguish between the different account types, a user sha
   | `unx-lx_ext_users` | external accounts |
   | `unx-lx_e_users`   | experiment accounts |
 
+```{note}
+unx-lx_ext_users - this group does not yet contain all ext accounts (only the ones that are currently in the scope of IAM - this should be fixed by end of January 2025
+```
+
 ### Policies
 GAC accounts __must not__ be used for administrative tasks (also see: AW-95-17-02 Logical Access Control). Therefore membership in groups granting such privilidges is not permitted.