API Endpoint(s) and/or Zoom API Event(s) POST [zoom-url]/oauth/token?grant_type=account_credentials&account_id=[account-id] Description I’m trying to use Postman to get an authorization token for my S2S app, but it keeps returning with an error: “invalid_client”. I’ll post my Postman configurati…

It looks like apps can only have one owner. Since I had my IT department create the app for me, I wasn’t able to authenticate even though I had the correct Client ID and Client Secret. It was only once the app ownership was transferred to me that I was able to authenticate successfully.

Server-to-Server Oauth error: invalid_client

API and Webhooks Authentication

elisa.zoom (Elisa) August 12, 2025, 6:18pm 2

Hey @Cybjorg
Thanks for reaching out to us!
Interesting, have you had the chance to review this guide here:

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Server-to-Server Oauth error: invalid_client

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