# Duplicate key, attempted merging values **URL:** \ **Category:** API and Webhooks\ **Tags:** webinar\ **Created:** [May 6, 2021, 1:12pm UTC](https://devforum.zoom.us/t/duplicate-key-attempted-merging-values/49750 "2021-05-06T13:12:17Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![Michael4824](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael4824/32/19083_2.png) [@Michael4824](https://devforum.zoom.us/u/Michael4824)\ **Post date:** [May 6, 2021, 1:12pm UTC](https://devforum.zoom.us/t/duplicate-key-attempted-merging-values/49750/1 "2021-05-06T13:12:18Z")
**Description** When hitting webinar/participants API, I’m getting the following returned (email redacted): “{”“code”":-1,"“message”":"“Duplicate key EMAIL (attempted merging values [REDACTED] and [REDACTED])”"}" Error only occurs when “include\_fields=registrant\_id” is included, and participant records 31-44 (or page\_size \>= 44.) **Error** “{”“code”":-1,"“message”":"“Duplicate key EMAIL (attempted merging values [REDACTED] and [REDACTED])”"}" **Which App Type (OAuth / Chatbot / JWT / Webhook)?** JWT **Which Endpoint/s?** /metrics/webinars/{webinarId}/participants > **[Get webinar participants - Dashboards - Zoom API - API Reference](https://marketplace.zoom.us/docs/api-reference/zoom-api/dashboards/dashboardwebinarparticipants)** > > Retrieve details on participants from live or past webinars. > Scopes: dashboard\_webinars:read:admin > Rate Limit Label: Heavy > Prerequisites: > > Business, Ed... **How To Reproduce (If applicable)** [https://api.zoom.us/v2/metrics/webinars/[REDACTED]/participants?type=past&include\_fields=registrant\_id&page\_size=300](https://api.zoom.us/v2/metrics/webinars/%5BREDACTED%5D/participants?type=past&include_fields=registrant_id&page_size=300) RestClient client = new RestClient($"{url}{(url.Contains("?") ? “&” : “?”)}page\_size={pageSize}"); RestRequest request = new RestRequest(Method.GET); request.AddHeader(“content-type”, “application/json”); request.AddHeader(“authorization”, $“Bearer {JWT}”); IRestResponse response = client.Execute(request); Console.WriteLine(response.Content); Thanks! ---
**Author:** ![Michael4824](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael4824/32/19083_2.png) [@Michael4824](https://devforum.zoom.us/u/Michael4824)\ **Post date:** [May 6, 2021, 2:45pm UTC](https://devforum.zoom.us/t/duplicate-key-attempted-merging-values/49750/2 "2021-05-06T14:45:27Z")
I modified the above post, but want to add that the error is only thrown with my meeting ID when results 31-44 are included (page\_size=300 also works) and “include\_field=registrant\_id” is included. ---
**Author:** ![Michael4824](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael4824/32/19083_2.png) [@Michael4824](https://devforum.zoom.us/u/Michael4824)\ **Post date:** [May 7, 2021, 12:39pm UTC](https://devforum.zoom.us/t/duplicate-key-attempted-merging-values/49750/3 "2021-05-07T12:39:08Z")
Found another webinar throwing the same error. ID [REDACTED] Duplicate key EMAIL (attempted merging values [REDACTED] and [REDACTED]) ---
**Author:** ![MaxM](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/maxm/32/42303_2.png) [@MaxM](https://devforum.zoom.us/u/MaxM)\ **Post date:** [May 7, 2021, 11:47pm UTC](https://devforum.zoom.us/t/duplicate-key-attempted-merging-values/49750/4 "2021-05-07T23:47:51Z")
Hey @Michael4824, Thank you for reaching out to the Zoom Developer Forum. I’ve reached out to our engineering team to see if they are able to provide a fix for this issue you’re seeing. I’ll update you here when I have more information. (ZOOM-271758) Thanks, Max ---
**Author:** ![MaxM](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/maxm/32/42303_2.png) [@MaxM](https://devforum.zoom.us/u/MaxM)\ **Post date:** [May 11, 2021, 12:47am UTC](https://devforum.zoom.us/t/duplicate-key-attempted-merging-values/49750/5 "2021-05-11T00:47:49Z")
Hey @Michael4824, Thank you for your patience. Our engineering team got back to me and let me know this is related to a known bug that will be fixed later this month. In the meantime, please see our [changelog](https://marketplace.zoom.us/docs/changelog) in order to stay up-to-date with the latest features and fixes. Thanks, Max ---
**Author:** ![Michael4824](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael4824/32/19083_2.png) [@Michael4824](https://devforum.zoom.us/u/Michael4824)\ **Post date:** [May 25, 2021, 1:09pm UTC](https://devforum.zoom.us/t/duplicate-key-attempted-merging-values/49750/6 "2021-05-25T13:09:31Z")
Hi @MaxM I saw that there was an API update [posted yesterday](https://marketplace.zoom.us/docs/changelog#publications/api-updates-may-23-2021), but I didn’t see this bug under the “bug fixes” section. Just checked my webinar and it’s still occurring. Do you have any update as to when this might be fixed? -Michael ---
**Author:** ![MaxM](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/maxm/32/42303_2.png) [@MaxM](https://devforum.zoom.us/u/MaxM)\ **Post date:** [May 26, 2021, 9:48pm UTC](https://devforum.zoom.us/t/duplicate-key-attempted-merging-values/49750/7 "2021-05-26T21:48:24Z")
Hey @Michael4824, Thank you for following up. I wasn’t able to confirm if this was fixed either so I reached out to our engineering team. I’ll let you know what I hear. Thanks, Max ---
**Author:** ![MaxM](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/maxm/32/42303_2.png) [@MaxM](https://devforum.zoom.us/u/MaxM)\ **Post date:** [May 28, 2021, 12:36am UTC](https://devforum.zoom.us/t/duplicate-key-attempted-merging-values/49750/8 "2021-05-28T00:36:19Z")
Hey @Michael4824, Our engineering team informed me the issue should be resolved. Please send an email to [developersupport@zoom.us](mailto:developersupport@zoom.us) with a link to this thread. In that email, please include the endpoint and body for the failing request. We’ll use that to look into this further. Thanks, Max ---
**Author:** ![Michael4824](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael4824/32/19083_2.png) [@Michael4824](https://devforum.zoom.us/u/Michael4824)\ **Post date:** [May 28, 2021, 12:26pm UTC](https://devforum.zoom.us/t/duplicate-key-attempted-merging-values/49750/9 "2021-05-28T12:26:27Z")
Thanks @MaxM, I sent an email this morning. -Michael ---
**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:** [May 28, 2021, 3:26pm UTC](https://devforum.zoom.us/t/duplicate-key-attempted-merging-values/49750/10 "2021-05-28T15:26:08Z")
Thanks, @Michael4824! We will be in touch with you there. 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:** [June 28, 2021, 1:26am UTC](https://devforum.zoom.us/t/duplicate-key-attempted-merging-values/49750/11 "2021-06-28T01:26:36Z")
Closed on June 28, 2021, 1:26am UTC This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.