diff --git a/backend/open_webui/routers/auths.py b/backend/open_webui/routers/auths.py
index 6d2349f89f..af0e455146 100644
--- a/backend/open_webui/routers/auths.py
+++ b/backend/open_webui/routers/auths.py
@@ -522,6 +522,18 @@ async def ldap_auth(
                         db=db,
                     )
 
+                    if request.app.state.config.WEBHOOK_URL:
+                        await post_webhook(
+                            request.app.state.WEBUI_NAME,
+                            request.app.state.config.WEBHOOK_URL,
+                            WEBHOOK_MESSAGES.USER_SIGNUP(user.name),
+                            {
+                                'action': 'signup',
+                                'message': WEBHOOK_MESSAGES.USER_SIGNUP(user.name),
+                                'user': user.model_dump_json(exclude_none=True),
+                            },
+                        )
+
                 except HTTPException:
                     raise
                 except Exception as err:
diff --git a/backend/open_webui/routers/users.py b/backend/open_webui/routers/users.py
index 04be89c92f..2d204ac18f 100644
--- a/backend/open_webui/routers/users.py
+++ b/backend/open_webui/routers/users.py
@@ -193,6 +193,7 @@ class SharingPermissions(BaseModel):
     public_skills: bool = False
     notes: bool = False
     public_notes: bool = True
+    public_chats: bool = False
 
 
 class AccessGrantsPermissions(BaseModel):