Unable to create Azure App Service Managed Certificate for Accented Domain

Daniel Stout 6 Reputation points
2021-10-05T09:51:51.607+00:00

I was able to add a custom domain containing the accented character "é", and when I go to App Service Managed Certificates it says "Hostname eligible for certificate creation. Click Create to create your App Service Managed Certificate." but after clicking Add it give this error:

Properties.CanonicalName is invalid. Canonical name [...] includes at least one special character. Only letters and numbers are allowed.

I would assume that means I'm supposed to use the punycoded version of the domain, but Azure won't let me add it to the app service - it keeps asking me to add the TXT and A records, even though I already added them (as evidenced by how I was able to add the accented version of the domain)

Azure App Service
Azure App Service
Azure App Service is a service used to create and deploy scalable, mission-critical web apps.
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  1. Ryan Hill 26,951 Reputation points Microsoft Employee
    2021-10-05T17:59:10.237+00:00

    Hi @Daniel Stout ,

    Unfortunately, the use of accented characters isn't supported for App Service Managed Certs. Currently, there are no plans for supporting it. Main reason is because the use of accented characters will be rejected by DigiCert, so the CanonicalName invalid message is part of pre-validation step. To continue, you will have to use one of the other certificate options.