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Error 'Request body needs client_assertion or client_secret' while Setting Up Email Notifications for Scheduled Executions

Symptoms

Error while setting up email notifications for scheduled execution packages. Error Message received:

Error

One or more errors occurred. A configuration issue is preventing authentication - check the error message from the server for details. You can modify the configuration in the application registration portal. See https://aka.ms/msal-net-invalid-client for details. Original exception: AADSTS7000218: The request body must contain the following parameter: 'client_assertion' or 'client_secret'.

Cause

The issue was caused by the "allowPublicClient" setting in the app registration being set to "false".

Resolution

To resolve the issue, follow these steps:

Error 'Request body needs client_assertion or client_secret' while Setting Up Email Notifications for Scheduled Executions — screenshot 1
  1. Open the app registration in the Azure portal
  2. Select Authentication
  3. Set Allow public client flows to Yes
  4. Select Save

Note

This setting can also be changed in the app registration’s manifest file

Reference Ticket

35040

Set up Notifications on Critical Errors from the ODX Instance Notifications on Critical Errors – Timextender Support

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