What’s Happening?
Microsoft announced the retirement of their Office 365 Connectors within Microsoft Teams back in 2024. Instead they are moving towards Workflows app-based webhooks. This caused quite a stir for some Teams users as the migration to the Workflows webhooks lacked some key features, such as posting messages to shared or private channels or supporting the legacy but still widely used Message Card payload format.
Luckily Microsoft has responded to all the pushback, and as of February 2026 they’ve added support for the Message Card format and posting to shared channels, with support for private channels coming soon. The deprecation deadline has also been extended to April 30, 2026. Given that most of the kinks have been worked out, now’s the perfect time to migrate to the new Workflows webhooks. It’s also easier than the deprecation announcement article makes it seem.
Transitioning to Workflows Webhooks
First, create an incoming webhook workflow:
- Hover over the options ellipsis next to the channel you want to create the webhook for and select Workflows. Messages will be posted to this channel when the webhook is triggered.
- Search “Send webhook alerts to a channel” and select that template.
- Confirm the Team name and Channel name then click Save.
- Click on Copy webhook link to copy the webhook URL.
Use this webhook URL to replace the existing Office 365 Connectors URL used by your tool. Since Microsoft now supports the legacy features mentioned above, the new webhook URLs should be a drop-in replacement for any of your tools.
Here at Review Board, our Microsoft Teams integration lets you automatically notify channels about code review updates and discussion activity. All you need to do to keep your integration running smoothly is update its webhook URL:
- Select your Microsoft Teams integration from the Integrations page in the Administration UI.
- Paste your new webhook URL into the WebHook URL field and click Save.
And that’s all that’s needed to keep receiving your code review Teams updates as Microsoft transitions to the new Worklows webhooks! Review Board will continue to support the legacy Microsoft 365 Connectors webhooks until the deprecation deadline.