# Webhook authorisation and Power Automate

**URL:** <https://devforum.zoom.us/t/webhook-authorisation-and-power-automate/130885>\
**Category:** API and Webhooks\
**Tags:** webhooks\
**Created:** [April 3, 2025, 8:32am UTC](https://devforum.zoom.us/t/webhook-authorisation-and-power-automate/130885 "2025-04-03T08:32:49Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Admin\_NK\_SSE](https://avatars.discourse-cdn.com/v4/letter/a/e9c0ed/32.png) [@Admin\_NK\_SSE](https://devforum.zoom.us/u/Admin_NK_SSE)\
**Post date:** [April 3, 2025, 8:32am UTC](https://devforum.zoom.us/t/webhook-authorisation-and-power-automate/130885/1 "2025-04-03T08:32:49Z")

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Hi

I’m trying to use webhooks and Power Automate to automate some business processes. I’ve managed to validate my app successfully, but only after using a custom header, as suggested in this post on this forum: _Issue sending webhooks to Microsoft Power Automate_ (posted in Feb 2025).

However, normal webhook calls are failing, I’m thinking for the same reason because the Zoom logs show this in the response data:

```auto
{
  "error": {
    "code": "DirectApiRequestHasMoreThanOneAuthorization",
    "message": "The request has SAS authentication scheme and an additional authorization scheme or internal token scheme. Only one scheme should be used."
  }
}

```

Any suggestions as to how to over come this?

Thanks in advance

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<div class="post-metadata">

**Author:** ![KYKramer](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/kykramer/32/71968_2.png) [@KYKramer](https://devforum.zoom.us/u/KYKramer)\
**Post date:** [October 27, 2025, 8:24pm UTC](https://devforum.zoom.us/t/webhook-authorisation-and-power-automate/130885/3 "2025-10-27T20:24:13Z")

</div>

@Admin_NK_SSE did you find a solution for this problem? I’m having the same issue. Power Automate requires SAS authentication/tokens, and Zoom’s validator doesn’t sign or process SAS tokens. If you found a solution, I’d greatly appreciate any help or guidance you can provide.

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<div class="post-metadata">

**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:** [October 31, 2026, 12:01pm UTC](https://devforum.zoom.us/t/webhook-authorisation-and-power-automate/130885/4 "2026-10-31T12:01:15Z")

</div>

Closed on October 31, 2026, 12:01pm UTC

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