Hi @Ernesto , thanks for the question. sorry to hear you're facing this error.
Usually that error message means that your CNAME record for MYSITE is not correctly pointing to APPSERVICENAME.azurewebsites.net.
Please make sure that the CNAME record for MYSITE is correctly configured and pointing to APPSERVICENAME.azurewebsites.net in your DNS configuration. It can sometimes take some time (up to 72hrs) for changes to DNS records to propagate, so give it a bit of time and then check again if the error persists.
Also, you need to make sure that your custom domain meets the requirements for managed certificates, which include:
- The custom domain must be an apex domain or a subdomain.
- The custom domain must have an A record pointing to your web app's IP address.
- The custom domain must not be supported on apps that are not publicly accessible.
- The custom domain must not be supported with root domains that are integrated with Traffic Manager.
Hope that helps. Please let us know if you have further questions