How to enable additional users to create domain-named buckets in Google Cloud Storage?

Question

I want to create domain-named buckets in Google Cloud Storage.

I verified the ownership of the domain, and now I can create buckets with the particular names using my own account.

However, I also need to give permissions to some other developers and some service accounts to do the same thing, so I added those users as verified owners of the domain.
They can be seen on the users screen.

And on the page about the domain owners.

Yet, if I try to create the domain-named bucket with any of the added accounts (either if it's a real person's account or a service account), I get the following error.

10:46:35.447 Creating gs://bucket.mydomain.com/...
10:46:35.697 AccessDeniedException: 403 The bucket you tried to create is a domain name owned by another user.

(If I try to create the bucket from the web management console, I get a similar error.)
I verified that the accounts have permissions for the GCE project, so they can create buckets fine as long as they are not domain-named.

What am I doing wrong?

Answer 1

The docs point to an incorrect way of verifying ownership. For service accounts add them via https://www.google.com/webmasters/verification/home.

I figured it out after noticing different docs cover two similar sounding ways to verify ownership. I tried the page you have in your screenshots as its listed in the storage docs but then I found another set of steps listing yet another verification url. These are the steps which actually work.