Will Teams incoming webhooks stop delivering alerts after M365 connector deprecation?

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Will Teams incoming webhooks stop delivering alerts after M365 connector deprecation?

Srinivasan Neha 105

We have a production monitoring system that sends real-time alerts to Microsoft Teams channels using incoming webhook connectors. These alerts are business-critical (incident response, system outages), and there is no fallback mechanism in place.

With the announced deprecation of Microsoft 365 connectors, we need to understand whether existing webhook endpoints will stop functioning or be throttled/degraded. Any disruption would directly impact our incident response process.

Is there a confirmed cutoff date for incoming webhooks, and what is the recommended migration path that ensures zero downtime

mr jhon smite 20 Reputation points

2026-04-08T13:01:49.12+00:00

Hi, we’re in a similar situation using incoming webhook connectors for critical alerts, so this deprecation is a major concern for us.

From what I’ve seen, the retirement deadline has been extended to April 30, 2026, and after that, existing Office 365 connectors (including webhook endpoints) are expected to stop functioning if not migrated.

Given the risk, we’re currently evaluating migration to Power Automate / Workflows webhooks, as this seems to be the recommended path to avoid disruption.

Would be great to hear if anyone has implemented a zero-downtime migration strategy or is running both systems in parallel during transition.

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mr jhon smite 20 Reputation points

2026-04-08T13:01:49.12+00:00

Hi, we’re in a similar situation using incoming webhook connectors for critical alerts, so this deprecation is a major concern for us.

From what I’ve seen, the retirement deadline has been extended to April 30, 2026, and after that, existing Office 365 connectors (including webhook endpoints) are expected to stop functioning if not migrated.

Given the risk, we’re currently evaluating migration to Power Automate / Workflows webhooks, as this seems to be the recommended path to avoid disruption.

Would be great to hear if anyone has implemented a zero-downtime migration strategy or is running both systems in parallel during transition.

Answer 1

Vergil-V 11,645 Microsoft External Staff Moderator

Hi @Srinivasan Neha

Based on my research, the latest confirmed retirement date for Office 365 Connectors is April 30, 2026.

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Microsoft’s recommended approach is to transition from Office 365 Connectors to Teams Workflows, which provide a supported and more flexible way to continue delivering notifications and alerts in Microsoft Teams.

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For additional details, you may find the following resource helpful: Retirement of Office 365 connectors within Microsoft Teams

If you are using webhooks with workflows, you can refer to this guide for step‑by‑step instructions on creating and configuring them: https://learn.microsoft.com/en-us/microsoftteams/platform/webhooks-and-connectors/how-to/add-incomi…

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Srinivasan Neha 105 Reputation points

2026-04-08T13:47:27.38+00:00

Hi Vergil

I understand the situation and acknowledge that MS have the alternatives as the webhook. However, I think MS must take the reponsibility to inform this big change by the email or sth kind of big and specific notifications. I am the admin of the org so I dont have time to research and have to know through the topic on the devblog, especially just right before 3 weeks :(

Anw, thanks for the confirmation
Vergil-V 11,645 Reputation points Microsoft External Staff Moderator

2026-04-08T14:54:26.3633333+00:00

Hi @Srinivasan Neha
I completely understand that significant and important service updates should be communicated to Global Administrators.

These types of updates are typically published in the Message Center within the Microsoft 365 Admin Center. For example, updates related to the current topic were shared there, such as the information referenced in https://admin.cloud.microsoft/?#/MessageCenter/:/messages/MC1181996

To ensure you do not miss important announcements, you may want to review your Message Center email notification settings. You can enable email notifications by navigating to Microsoft 365 Admin Center > Message Center > Preferences > Email > Choose which emails you want to get.

I hope this helps ensure you stay up to date with relevant news and important service updates.

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Will Teams incoming webhooks stop delivering alerts after M365 connector deprecation?

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