@nabi04
Thank you for your post and I'm glad that bharathn-msft's comment helped with your issue! When it comes to AzureAD sending an email notification for credential certificate expiration, it looks like this isn't possible as of right now. However, our engineering team is currently prioritizing this feature.
Additional Links:
How to setup an Azure Alert for Automation Account Certificate Expiry
Trigger email notifications or Azure log generation when a certificate is nearing expiration.
If you have any other questions, please let me know.
Thank you for your time and patience throughout this issue.
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