Moving a domain between accounts

Hey, I wanted to move a domain added to a test site from my developer account to my friend’s account. So, I’ve deleted it from my account, then when I tried to add it on the other account, I get the error “custom_domain is owned by the other account”. How can I solve this issue?

Here’re some related issues I’ve found, but not really helpful:

hi there,

here is a guide that might prove helpful: