# User Authentication Requirements

**URL:** <https://devforum.zoom.us/t/user-authentication-requirements/141338>\
**Category:** Meeting SDK\
**Created:** [January 19, 2026, 10:38am UTC](https://devforum.zoom.us/t/user-authentication-requirements/141338 "2026-01-19T10:38:57Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![BrunoInt](https://avatars.discourse-cdn.com/v4/letter/b/41988e/32.png) [@BrunoInt](https://devforum.zoom.us/u/BrunoInt)\
**Post date:** [January 19, 2026, 10:38am UTC](https://devforum.zoom.us/t/user-authentication-requirements/141338/1 "2026-01-19T10:38:57Z")

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Hi Zoom Community,

I have an app that allows conference room TVs to join Zoom meetings via invitation links using the Meeting SDK. Previously, no authentication was needed – just one click to join.  
The conference room has a android app that receives invitations and the meeting starts on the TV.  
Multiple users can use the same device.

With the February 23, 2026 anonymous participant I’m struggling to find a solution that works for room systems.

### My Current Implementation:

I implemented OAuth authentication + ZAK tokens. Users authenticate before joining, then I use the ZAK token to join the meeting as that user. This works but breaks the single-click experience.

### My Questions:

**1.** Currently, I can only join meetings when authenticated with user from my account. Authentication fails (shows a message: “Application not found - It may have been deleted or you don’t have permission to view it right now.” ) with personal Zoom accounts (free tier).  
Is this because app isn’t published yet? Or some other kind of limitation?

**2.** Once published, will any Zoom user be able to authenticate and join meetings hosted by any account?

**3.** Can I keep the app unlisted (private) and still have OAuth work for users outside my organization?

**4.** Is there a better authentication method for this scenario that doesn’t require user interaction each time? For example:

- Server-to-Server OAuth with one service account for all rooms?
- Some form of device-based authentication?

**5.** What’s Zoom’s recommended approach for Meeting SDK in shared devices where there’s no individual user present?

Any guidance on the best authentication approach for room systems would be greatly appreciated!