SSL Certificate for Dynamics 365 Endpoint Not Renewed

Hi Nathan,

You're right. For Microsoft-managed environments, SSL certificates are normally renewed automatically by the platform. If the certificate expired and wasn’t renewed, it usually indicates a service-side issue. Common causes include:

• A stuck certificate rotation job in Lifecycle Services (LCS).
• The environment being in a Stopped or failed state.
• Rare backend provisioning delays.

You can check out these recommendations:

Rotate SSL Certificate via LCS

• Sign in to Lifecycle Services (LCS).
• Go to your environment → Maintain → Rotate secrets → Rotate SSL Certificates.
• Confirm and monitor the servicing operation (usually completes in 10–15 minutes).

If Rotation Option is Missing or Fails

• Ensure the environment is in Deployed state.
• If the option is unavailable or the job fails, capture the error details and open a Microsoft support ticket, as this indicates a backend issue.

Reference:

• Rotate SSL Certificates in LCS
• Certificate Rotation Guidance

Since this looks more like a Dynamics 365 environment management issue rather than IIS. To save time and make sure the right experts see your question, I'd recommend you could edit the tag or create a new thread with a different tag (example: Microsoft 365 and Office).

I hope this helps!