Assistance Needed – Inconsistent Retrieval of Participant Email IDs

Hi Zoom Developer Support,

We are noticing some inconsistencies in retrieving participant email IDs after Zoom meetings and would appreciate your assistance.

Scenario 1:
We created a Zoom meeting and invited participants via Google Calendar/Zoom invite.

In most cases, we are able to capture participants’ email IDs, but for some attendees, the email information is missing.

For Example in the below meeting: We were not able to fetch participant user_email whom we invited through the google calendar. We were able to get the participant object but not the user email. We tried with uuid and meeting_id

	API: https://api.zoom.us/v2/past_meetings/82197896104/participants
UUID: Osc9KWoCS5+AC4KnQ2Wj4Q==
Meeting_id: 82197896104 


Response:
	{
    "page_count": 1,
    "page_size": 30,
    "total_records": 2,
    "next_page_token": "",
    "participants": [
        {
            "id": "fDTRq0zNQ-qNJGsta9kkfw",
            "user_id": "16778240",
            "name": "E***d**** T*****a***a",
            "user_email": "e*****r@v****e*s.io",
            "join_time": "2025-02-13T21:57:49Z",
            "leave_time": "2025-02-13T22:01:20Z",
            "duration": 211,
            "registrant_id": "",
            "failover": false,
            "status": "in_meeting",
            "groupId": "bS5RxZzvRmeV-Rl8-GnMuw",
            "internal_user": true
        },
        {
            "id": "",
            "user_id": "16785408",
            "name": "E*****R****y",
            "user_email": "",                             —> No email (invited through google calendar)
            "join_time": "2025-02-13T21:58:42Z",
            "leave_time": "2025-02-13T22:01:19Z",
            "duration": 157,
            "registrant_id": "",
            "failover": false,
            "status": "in_meeting",
            "groupId": "",
            "internal_user": false
        }
    ]
}

Scenario 2:

In one of our client’s use cases, they create a Zoom meeting and share the meeting link on social platforms.
1.Anyone can join the meeting using the shared Zoom link.
2.In this case, we are unable to retrieve participants’ email IDs.

Could you help us understand the expected behavior in these scenarios and if there are any specific settings or API configurations needed to ensure consistent email retrieval?

Hi,

Are the users guests?
If that is the case, Zoom will not return the email addresses for users marked as guests in the API response

Hope this helps!

Cheers,
Harsh
Fario Consulting