Aaron5
(Aaron)
February 12, 2026, 6:10pm
1
I’m getting a 401 unauthorized error when posting a webinar registrant, but only sometimes.
here are some recent x-zm-trackingids
v=2.0;clid=us06;rid=WEB_7cb28041f68bbd00c19e0ef7eaf4a39e
v=2.0;clid=us06;rid=WEB_9df403c1409761e55a7fe627d57c9304
v=2.0;clid=us06;rid=WEB_64a740f6694effc7d42f972df4a94477
v=2.0;clid=us06;rid=WEB_506058806458eda832f6df13bce0c22d
there is no error code, no rate limit, no message about invalid token or any other additional information or context.
I’m trying to troubleshoot intermittent and inconsistent errors with Zoom API, and this post is related to the other 2 I’ve put up recently (linked below).
I’m registering users for a webinar via API, and i’m getting intermittent 429 errors stating
“You have exceeded the daily rate limit of (3) for Add a webinar registrant API requests for the registrant (user@example.com ). You can resume these API requests at GMT 00:00:00.”
I have confirmed the user is NOT registered for the webinar.
Why am I getting this error, and how can I avoid it?
I don’t understand why I am getting a 404 Not Found response for a POST to webinar/{id}/registrants
I am posting user registration data to zoom, and the data does not include any user id, only email, name, etc.
The response is: {“code”:1001,“message”:“User does not exist.”}
This error is intermittent.
What can cause this error and how can i avoid it?