# Missing participants **URL:** \ **Category:** API and Webhooks\ **Created:** [November 9, 2020, 7:29am UTC](https://devforum.zoom.us/t/missing-participants/35445 "2020-11-09T07:29:37Z")\ **Posts on this page:** 18\ **Page:** 1
**Author:** ![et-dev](https://avatars.discourse-cdn.com/v4/letter/e/7feea3/32.png) [@et-dev](https://devforum.zoom.us/u/et-dev)\ **Post date:** [November 9, 2020, 7:29am UTC](https://devforum.zoom.us/t/missing-participants/35445/1 "2020-11-09T07:29:37Z")
We are using [https://marketplace.zoom.us/docs/api-reference/zoom-api/meetings/pastmeetings](https://marketplace.zoom.us/docs/api-reference/zoom-api/meetings/pastmeetings) to get the list of meeting instances for a given meetingId. For each meeting instance, we call [https://marketplace.zoom.us/docs/api-reference/zoom-api/reports/reportmeetingparticipants](https://marketplace.zoom.us/docs/api-reference/zoom-api/reports/reportmeetingparticipants) to get the list of participants and their join/leave time. For a specific meetingId, we get an empty list of participants, even though the recording of the same meetingId clearly shows that there were several participants for a long period of time. Even tried to fetch participants report using the meetingId itself (instead of meeting instance UUId), but still the list of participants returns empty. ---
**Author:** ![will.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/will.zoom/32/14417_2.png) [@will.zoom](https://devforum.zoom.us/u/will.zoom)\ **Post date:** [November 10, 2020, 7:15pm UTC](https://devforum.zoom.us/t/missing-participants/35445/2 "2020-11-10T19:15:37Z")
Hi @et-dev, Thanks for reaching out about this. Can you share the meeting ID or UUID that you’re using? I’m happy to take a closer look. Thanks, Will ---
**Author:** ![et-dev](https://avatars.discourse-cdn.com/v4/letter/e/7feea3/32.png) [@et-dev](https://devforum.zoom.us/u/et-dev)\ **Post date:** [November 10, 2020, 8:22pm UTC](https://devforum.zoom.us/t/missing-participants/35445/3 "2020-11-10T20:22:05Z")
Zoom Meeting ID: 98272729370 Thank you @will.zoom ---
**Author:** ![will.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/will.zoom/32/14417_2.png) [@will.zoom](https://devforum.zoom.us/u/will.zoom)\ **Post date:** [November 11, 2020, 7:38pm UTC](https://devforum.zoom.us/t/missing-participants/35445/4 "2020-11-11T19:38:36Z")
Hi @et-dev, Thanks for confirming—I’m also seeing that previous occurrences of this meeting appear to have had several attendees. Is it possible to share the exact request URL and associated API response where you’re seeing the missing participants? Additionally, are you passing the Meeting ID or UUID in the request URL? Let me know—thanks! Best, Will ---
**Author:** ![et-dev](https://avatars.discourse-cdn.com/v4/letter/e/7feea3/32.png) [@et-dev](https://devforum.zoom.us/u/et-dev)\ **Post date:** [November 12, 2020, 11:15am UTC](https://devforum.zoom.us/t/missing-participants/35445/5 "2020-11-12T11:15:24Z")
[12/11/2020 13:01:06] Sending request… GET /past\_meetings/{meetingId}/instances Authorization: Bearer eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJleHAiOjE2MDUxNzkwNDUsImlzcyI6IjlzRzV2SWg4UkVldlV2aV9RY0hzRlEifQ.Tg0rmFpCJnydE6aNRZTmip-GOa8D7yh0KPZtw5JjN5w Content-Type: application/json Parameters: meetingId: 98272729370 RESPONSE: { “Meetings”: [ { “UuId”: “fQSA1bHnQrW7uzDjqQWK/A==”, “Start\_Time”: “2020-11-02T02:00:15Z” } ] } [12/11/2020 13:01:07] Sending request… GET /report/meetings/{meetingId}/participants?page\_size=300 Authorization: Bearer eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJleHAiOjE2MDUxNzkwNDYsImlzcyI6IjlzRzV2SWg4UkVldlV2aV9RY0hzRlEifQ.aAwZeKjEJo0kGW9VPNkpZC7YbIeE7w9hZVy5bm8g54w Content-Type: application/json Parameters: meetingId: fQSA1bHnQrW7uzDjqQWK%2FA%3D%3D RESPONSE: { “PageCount”: 0, “PageSize”: 300, “TotalRecords”: 0, “NextPageToken”: “”, “Participants”: } [12/11/2020 13:01:07] Sending request… GET /report/meetings/{meetingId}/participants?page\_size=300 Authorization: Bearer eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJleHAiOjE2MDUxNzkwNDcsImlzcyI6IjlzRzV2SWg4UkVldlV2aV9RY0hzRlEifQ.7RPxBkKZ5HTrSsL689SpaWRLh5stgJfNzZIvw4wjgV4 Content-Type: application/json Parameters: meetingId: 98272729370 RESPONSE: { “PageCount”: 0, “PageSize”: 300, “TotalRecords”: 0, “NextPageToken”: “”, “Participants”: } ---
**Author:** ![will.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/will.zoom/32/14417_2.png) [@will.zoom](https://devforum.zoom.us/u/will.zoom)\ **Post date:** [November 13, 2020, 4:20pm UTC](https://devforum.zoom.us/t/missing-participants/35445/6 "2020-11-13T16:20:58Z")
Hi @et-dev, Thanks for sharing these details. We’re looking into this for you. (ZOOM-217134) Thanks, Will ---
**Author:** ![et-dev](https://avatars.discourse-cdn.com/v4/letter/e/7feea3/32.png) [@et-dev](https://devforum.zoom.us/u/et-dev)\ **Post date:** [November 24, 2020, 5:20pm UTC](https://devforum.zoom.us/t/missing-participants/35445/7 "2020-11-24T17:20:35Z")
Hi @will.zoom Any news on this? ---
**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\ **Post date:** [November 25, 2020, 8:39pm UTC](https://devforum.zoom.us/t/missing-participants/35445/8 "2020-11-25T20:39:27Z")
Hey @et-dev, We have identified the issue and are working on fixing it. 🙂 Thanks, Tommy ---
**Author:** ![v.hristov](https://avatars.discourse-cdn.com/v4/letter/v/96bed5/32.png) [@v.hristov](https://devforum.zoom.us/u/v.hristov)\ **Post date:** [November 27, 2020, 2:37pm UTC](https://devforum.zoom.us/t/missing-participants/35445/9 "2020-11-27T14:37:22Z")
Hi @tommy, Could you please let us know if this issue (ZOOM-217134) is the root cause behind the other recent reports of API returning empty list of participants? The other threads in the forum which I noticed are: - [Getting participants returns zero](https://devforum.zoom.us/t/getting-participants-returns-zero/37039) - [Get List Meeting Participant](https://devforum.zoom.us/t/get-list-meeting-participant/36982) - [Participant webhooks missing and API calls fail to show data?](https://devforum.zoom.us/t/participant-webhooks-missing-and-api-calls-fail-to-show-data/36949/2) Many thanks. ---
**Author:** ![will.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/will.zoom/32/14417_2.png) [@will.zoom](https://devforum.zoom.us/u/will.zoom)\ **Post date:** [November 30, 2020, 8:26pm UTC](https://devforum.zoom.us/t/missing-participants/35445/10 "2020-11-30T20:26:40Z")
Hi @v.hristov, These other threads appear to have been related to the incident we experienced on the 26th. This thread is in regards to a pre-existing bug. If you’re still seeing issues, can you provide a recent example here? Thanks! Will ---
**Author:** ![v.hristov](https://avatars.discourse-cdn.com/v4/letter/v/96bed5/32.png) [@v.hristov](https://devforum.zoom.us/u/v.hristov)\ **Post date:** [December 1, 2020, 9:26am UTC](https://devforum.zoom.us/t/missing-participants/35445/11 "2020-12-01T09:26:42Z")
Hi @will.zoom, Thanks for replying in the other threads, I will come back in case the issue comes up again. ---
**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\ **Post date:** [December 1, 2020, 4:45pm UTC](https://devforum.zoom.us/t/missing-participants/35445/12 "2020-12-01T16:45:46Z")
Hey @et-dev, The API should return the correct data for the meeting now, please try again. 🙂 Thanks, Tommy ---
**Author:** ![et-dev](https://avatars.discourse-cdn.com/v4/letter/e/7feea3/32.png) [@et-dev](https://devforum.zoom.us/u/et-dev)\ **Post date:** [December 2, 2020, 4:07pm UTC](https://devforum.zoom.us/t/missing-participants/35445/13 "2020-12-02T16:07:40Z")
Hi @tommy The problem was fixed, but just for this example only. Please check another example: meeting ID: 97422016574 meeting UUID before encoding: i33BCCH+Q3msBdvuTPAHZA== Same issue - there is a recording and one meeting instance but the API returns an empty list of participants, both using meeting ID and UUID. ---
**Author:** ![will.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/will.zoom/32/14417_2.png) [@will.zoom](https://devforum.zoom.us/u/will.zoom)\ **Post date:** [December 3, 2020, 7:00pm UTC](https://devforum.zoom.us/t/missing-participants/35445/14 "2020-12-03T19:00:11Z")
Hi @et-dev, Thanks for sharing this example—we’re taking a look. Best, Will ---
**Author:** ![will.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/will.zoom/32/14417_2.png) [@will.zoom](https://devforum.zoom.us/u/will.zoom)\ **Post date:** [December 4, 2020, 1:50pm UTC](https://devforum.zoom.us/t/missing-participants/35445/15 "2020-12-04T13:50:41Z")
Hi @et-dev, This should be resolved for you now. Please try again when you have a chance. 🙂 Thanks, Will ---
**Author:** ![et-dev](https://avatars.discourse-cdn.com/v4/letter/e/7feea3/32.png) [@et-dev](https://devforum.zoom.us/u/et-dev)\ **Post date:** [December 6, 2020, 11:04am UTC](https://devforum.zoom.us/t/missing-participants/35445/16 "2020-12-06T11:04:43Z")
Hi @will.zoom Fixed for second example. But we have more examples still not fixed. Is there anyway to fix this retroactively sweepingly for all cases? I can try to concentrate a full list if that would help. Thank you. ---
**Author:** ![will.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/will.zoom/32/14417_2.png) [@will.zoom](https://devforum.zoom.us/u/will.zoom)\ **Post date:** [December 7, 2020, 9:16pm UTC](https://devforum.zoom.us/t/missing-participants/35445/17 "2020-12-07T21:16:22Z")
Thanks @et-dev, I just DM’d you! Best, Will ---
**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\ **Post date:** [January 7, 2021, 7:16am UTC](https://devforum.zoom.us/t/missing-participants/35445/18 "2021-01-07T07:16:35Z")
Closed on January 7, 2021, 7:16am UTC This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.