Thanks for posting your question in the Microsoft Q&A forum.
You need to make a few specific changes compared to using a System-Assigned Managed Identity.
- Assign the User-Assigned Managed Identity to the Function App
- For User-Assigned Managed Identities, you need to set a special property called
keyVaultReferenceIdentity
on the Function App - Ensure that the User-Assigned Managed Identity has the necessary RBAC permissions to access the App Configuration
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