Building a Secure Power Automate Flow to Post in Microsoft Teams via Webhook
Office 365 connectors in Teams are being deprecated, with Power Automate recommended as an alternative for integration due to its enhanced security and flexibility. In this video, I demonstrate how to build a Power Automate Cloud Flow that can be triggered via a Webhook REST API to post messages to a Microsoft Teams channel.
Starting with a basic example, I then show how to pass parameters into the webhook, such as the Teams and Channel ID, as well as parameters that can dynamically update the message posted to the channel.
To illustrate, I use a PowerShell script to post data to the webhook, simulating a public webhook scenario. I also demonstrate how to secure the webhook by enabling it for Entra ID users only. This involves configuring an App Registration in Azure and making the necessary changes to implement secure access.
Finally, if you're blocked by Data Loss Prevention (DLP), I explain what DLP is and how you or your IT/Governance administrator can enable the connector in your DLP settings.
00:00 Intro
00:15 Worksflows in Teams
02:25 Post Message to Chat or Channel
03:15 Post to Flow from PowerShell
04:22 Accessing Body Values
09:04 Data Loss Prevention
11:08 Setting up an App Registration
11:59 Securing the Webhook
13:55 Outro
Blog Post from Microsoft https://devblogs.microsoft.com/micros...
Teams Webhook https://learn.microsoft.com/en-us/con...
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