I’ve created a Webhook to try to send event notifications to Microsoft Flow. The problem is the events never even seem to be sent out, because Flow would show me the endpoint was accessed but it hasn’t been at all. When checking the logs for the Webhook, it just shows 401. Any ideas what could be ha…

I wonder if it has something to do with the way Microsoft Flow URLs are. I’ve wrote a PHP bridge between the Webhook and Flow, and it does work, but it is of course ideally to connect them straight to each other. I had read a on a JIRA forum about replacing all instances of %2F with / in the URL and…

Hi @TRC-Techs , We are working on your issue and will respond to you as soon as we have any updates. Thanks

@TRC-Techs , Please accept my apologies for not responding in time. I have responded to you via personal message. Thanks,

Hi @ojus.zoom , I have the same issue when trying to connect webhhook to MS Flow. Can you please post possible solution? Thanks in advance.

Hi @oleksandr.olashyn , Are you a free user? If yes, we recently made some changes that could impact you. Please see this for more details: [image] Developer impacting changes during COVID-19 API and Webhooks Developer impacting changes during COVID-19 Zoom Dev…

Hi @ojus.zoom , I have Business and Webinar license.

Hey @oleksandr.olashyn , Please share more details like how you setup your Webhook to work with MS Flow. What webhook events are you trying to use? What is the endpoint url? Thanks, Tommy

Hi @tommy , I am trying to get information when webinar registrants are created. As an endpoint url I am using url that is automatically generated by MS Flow (my trigger step in MS Flow is Http Request Received). In the webhook logs I can see next error message - “The request has both SAS authentica…

Hey @oleksandr.olashyn , It sounds like Zoom webhooks are sending properly to your endpoint URL. I would suggest reaching out to the Microsoft Flow team for support on how to accept webhooks with the Authorization header. Thanks, Tommy

Hi @tommy , Will reach out to Microsoft. Thanks for your help.

Webhook always showing 401 and not sending notifications

API and Webhooks

ojus.zoom (Ojus) March 19, 2020, 3:50pm 7

Hi @oleksandr.olashyn,

Are you a free user? If yes, we recently made some changes that could impact you. Please see this for more details:

Topic		Replies	Views
Webhooks and Microsoft Power Automate (orig. MS Flow) API and Webhooks	5	6202	August 21, 2020
Status 401 after Webhook sent to Power Automate API and Webhooks	2	1029	February 26, 2022
Webhook authorisation and Power Automate API and Webhooks webhooks	1	442	October 27, 2025
Issue sending webhooks to Microsoft Power Automate API and Webhooks webhooks , api	2	208	February 10, 2025
Zoom WebHook with PowerAutomate API and Webhooks	2	688	December 18, 2023

Webhook always showing 401 and not sending notifications

Related topics