I have a custom domain example.com I use for email with Google Workspace. My Apple ID is also on that domain.
I want to move example.com to iCloud+ but have seen mentions this is hard or impossible when the Apple ID that purchased iCloud+ is already on the custom domain. E.g. my Apple ID is firstname.lastname@example.org.
Before I start I would like to be sure the migration is likely to succeed.
Has anyone moved a custom domain to iCloud+ that they were already using as the domain for their Apple ID, successfully? Any pitfalls or tips?