Dear All,
I'm trying to add a new directory with hyphen (-) in the domain name (default domain *.onmicrosoft.com). As a result I keep getting a validation error: "The domain is not unique". I've tried several combinations with really awkward words and a hyphen. Such domain names must be unique. I think that the error message is misleading.
Is it a well known behavior? Is it possible to use a hyphen in the domain name?
Thank you for your help,
Artem