3001 error while using /metrics/webinars/{webinarId}/participants

Description
Retrieve registrants, participants, and absentees of a part webinar

Error

“code”: 3001,
“message”: "Meeting does not exist: "

Which App Type (OAuth / Chatbot / JWT / Webhook)?
JWT

Which Endpoint/s?
https://api.zoom.us/v2/metrics/webinars?from=2020-09-01&to=2020-09-30&type=past
https://api.zoom.us/v2/metrics/webinars/{webinarUUID}/participants https://api.zoom.us/v2/metrics/webinars/{webinarId}/participants

Additional context
https://api.zoom.us/v2/metrics/webinars?from=2020-09-01&to=2020-09-30&type=past
returns

“webinars”: [
{
“uuid”: “UUID==”,
“id”: 123,
"participants": 10,
}
]

Since webinar id 123 has 10 participants, I was expecting https://api.zoom.us/v2/metrics/webinars/${webinarId}/participants to return a array of 10 records.
But, it is 0 as follows.
Gives me

{
“page_count”: 0,
“page_size”: 30,
“total_records”: 0,
“next_page_token”: “”,
“participants”:
}

I tried giving webinarUUID as follows.
https://api.zoom.us/v2/metrics/webinars/UUID==/participants
But, I have received

{ 
    "code": 3001,
    "message": "Meeting does not exist: UUID==." 
}

Since, webinarUUID gets changed, I tried calling
https://api.zoom.us/v2/past_webinars/123/instances.
But, this gives me an array of webinars and the start_time doesn’t match with the webinar I am searching for. Upon manual search, I found that the UUID hasn’t changed.

Apart from the participants list, I need registrants list and absentees list of a past webinar in the current month. How do I get the correct list ?

Hi @shersarayu,

Can you confirm that you’re using valid webinar IDs and UUIDs? If you’re able to share the details of the ID or UUID you’re using, specifically, I’m happy to take a closer look!

Thanks,
Will