Issue with adding custom domain

Question

Hi,

I am trying to add custom domain (subdomain-a.domain.net) to APIM (consumption). After I provide domain, certificate from .pfx file (wildcard certificate) and password (DNS is set up properly), when I click Save everything looks like OK, but suddenly domain disappears and APIM starts to update. It takes few minutes before I can do anything with it.

However when I try to add other custom domain (ie. subdomain-b.domain.net) with the same pfx etc. It works fine and domain is added successfully. What I am doing wrong?

Thank you for help and advice.

Jakub

Answer 1

Hello Jakub , Welcome to MS Q&A

Adding a custom domain to Azure API Management (APIM) can fail for one subdomain while succeeding for another due to permission issues or incorrect DNS configurations. Here are some potential reasons and solutions:

Permission Issues: Ensure that the API Management service has the necessary permissions to access the Key Vault used for the custom domain. If the service does not have the appropriate access, it will result in a failure.

DNS Configuration: Verify that all DNS records for the failing subdomain are correctly set up. This includes ensuring that CNAME records are properly configured and there are no incorrect DNS settings.

For more detailed troubleshooting steps, you can refer to the Failed to update API Management service hostnames documentation.

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Deepanshu