Hi @Ali , welcome to Microsoft Q&A forum.
I was following the article mentioned by you and was able to successfully set up the backup.
Basically we need to setup:
- Azure AD Admin for Postgre
- Enable 'Allow access to Azure Service'
- Set up the Access control for Reader role for Backup vault we just created
- Setting permission for backup user by following the document mentioned in the same article.
However looking at the error message it seems the mentioned resource is not registered with the subscription. Could you please go through the below article which explains how to solve the same error:
Common problem when using Azure resource groups & RBAC
Please let me know if this helps.
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