Add Registrant for a Recurring Webinar response (Missing Data)

[kupadhyaya (Kedar)]

Description
We have two recurring Webinars setups in two environments the same way and are testing the registration piece through our Services by calling the Adding a Webinar Registrant API. In one environment, we get the expected response with the Occurrences data, while the other will not return the Occurrences data but all the other details, see below. Can someone explain or provide any insight as to why this is happening and/or how it can be fixed?

Error?

Env. 1 (Correct):

{
“registrant_id”: “4VRlD36fQqSUc_1u79wHDg”,
“id”: 95348730468,
“topic”: “Software Development Open House”,
“start_time”: “2025-12-16T00:00:00Z”,
“join_url”: “Launch Meeting - Zoom”,
“occurrences”: [
{
“occurrence_id”: “1739836800000”,
“start_time”: “2025-02-18T00:00:00Z”,
“duration”: 60,
“status”: “available”
}
]
}

Env 2 Incorrect:

How To Reproduce
Steps to reproduce the behavior:
*1. OAuth Acc setup for Webhooks/Event Subs for Webinar with proper scopes
*2. Create and configure recurring Webinar that occurs weekly
*3. Submit info of users with Webinar/Occurrence details for Registration - No errors, but seeing Occurrences data missing in one env versus the other in the Registration response

[elisa.zoom (Elisa)]

Hi @kupadhyaya
Thanks for reaching out to us!
I am happy to take a closer look at this issue.
I will send you a DM for more details, please follow up there

[elisa.zoom (Elisa)]

To update this thread, the developer was able I was able to figure out the issue, and it was a Registration setting that was different between the two enviornments.

Correct one - Attendees need to register for each Occurrence they attend

Incorrect one/missing Occurrences data - Attendes can register once and can attend any of the occurrences.