I have a linux Web App backend attached to a FrontDoor instance with a custom domain, but I'm unable to create a managed certificate on the web app due to the error: "Hostname not eligible for App Service Managed Certificates creation."
How do I complete this step if the CNAME record is pointing to FrontDoor? I cannot temporarily change the CNAME record as it's a production website. Adding a "awverify" TXT record works for adding the custom domain to the web app, but not the certificate creation.