Approval Notifications Not Sent (Power Automate / Teams / Outlook)

Hi @Kantapon Piyametiburana

Please note that this is the th-th forum. We kindly recommend posting your question in Thai so that more community members can assist you. Alternatively, you may consider posting in the en-us forum if you prefer to use English. We sincerely appreciate your understanding. 

Based on your description, the “Start and wait for an approval” action is completing successfully and approval requests are appearing correctly in the Approvals center. This confirms that the core approval workflow itself is functioning. The issue seems to specifically affect the notification delivery layer (Outlook email and Microsoft Teams notifications). 

If you have admin rights, you can check for service issues in: 

• Service Health | Power Platform admin center 
• Service health - Microsoft 365 admin center 

Since the issue occurs across multiple flows, users, and even newly created flows, this points more toward a backend service-side issue rather than a configuration issue in your flows. 

At present, the Service Health dashboard does not show any advisories or incidents. Please note that we're not Microsoft support, this forum is a user-to-user support space. Moderators here don’t have backend access and cannot directly intervene in Microsoft services. What we can provide is technical guidance and best-practice recommendations based on reported issues. 

Because this forum doesn’t currently have a dedicated tag for Power Platform, you may find more targeted help by posting in the Microsoft Power Platform Community Forum Thread. It’s an active space with knowledgeable members who can walk you through troubleshooting steps and share their experiences. 

If you’ve already confirmed that your configuration is correct, the next step would be to raise a support ticket in the Power Platform Admin Center. Microsoft Support can then investigate whether this is a service-side issue. You can find guidance here: Get Support in Power Platform - Power Platform | Microsoft Learn. 

I really appreciate your patience and understanding. While we can’t confirm whether this is a service issue or a flow-specific issue, connecting with the right community and, if needed, raising a support ticket will ensure you get the practical assistance required to resolve this. 

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