# RTMS - no permission for this API error **URL:** \ **Category:** Realtime Media Streams\ **Tags:** webhooks, rtms\ **Created:** [May 27, 2026, 9:59pm UTC](https://devforum.zoom.us/t/rtms-no-permission-for-this-api-error/143890 "2026-05-27T21:59:23Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![krissb](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/krissb/32/50085_2.png) [@krissb](https://devforum.zoom.us/u/krissb)\ **Post date:** [May 27, 2026, 9:59pm UTC](https://devforum.zoom.us/t/rtms-no-permission-for-this-api-error/143890/1 "2026-05-27T21:59:23Z")
Similar to other requests in this forum. I am getting meeting started and stopped webhook events but when attempting to start the RTMS stream, I get this error: Calling startRTMS… startRTMS error: No Permission for this API. [code:80004, reason:app\_not\_support] I signed up for Zoom Developer Pack and it appears I have followed all the steps needing to get this working correctly including setting the right scopes, etc. Appreciate any guidance on what might be going wrong here? Thanks ---
**Author:** ![chunsiong.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/chunsiong.zoom/32/35488_2.png) [@chunsiong.zoom](https://devforum.zoom.us/u/chunsiong.zoom)\ **Post date:** [May 28, 2026, 3:42am UTC](https://devforum.zoom.us/t/rtms-no-permission-for-this-api-error/143890/2 "2026-05-28T03:42:28Z")
@krissb I’ve made some backend changes to your account, can you check if you still have the same issue? Just do confirm, when you are calling the API, are you doing something in this API shape? ![image](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/b/3/b3d8b3d89207e494038ed69b5590f5c65bde5d21.png) ---
**Author:** ![krissb](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/krissb/32/50085_2.png) [@krissb](https://devforum.zoom.us/u/krissb)\ **Post date:** [May 28, 2026, 11:48am UTC](https://devforum.zoom.us/t/rtms-no-permission-for-this-api-error/143890/3 "2026-05-28T11:48:26Z")
hi @chunsiong.zoom - your backend change helped with kicking off rtms on auto-start. Adopting your API recommendation helped me start/stop RTMS on-demand. Thanks for your help! ---
**Author:** ![chunsiong.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/chunsiong.zoom/32/35488_2.png) [@chunsiong.zoom](https://devforum.zoom.us/u/chunsiong.zoom)\ **Post date:** [June 2, 2026, 3:14am UTC](https://devforum.zoom.us/t/rtms-no-permission-for-this-api-error/143890/4 "2026-06-02T03:14:28Z")