diff --git a/docs/api-reference.md b/docs/api-reference.md
index 3c1960d..b5b36fa 100644
--- a/docs/api-reference.md
+++ b/docs/api-reference.md
@@ -923,6 +923,10 @@ Response:
 }
 ```
 
+Rules:
+
+- only `owner/admin` can create invite links for group/channel chats.
+
 ### POST `/api/v1/chats/join-by-invite`
 
 Auth required.