admin email is already in use
- Google Workspace sign up page
- Sign up using a different email address in a domain that is not in use, (for example username1@domain).
- Proceed with the domain ownership verification as instructed in this article: protect your domain.
- Rename administrator user account to the original email using the steps described here: change a user's email address.
Note: If you prefer to transfer the Consumer Google account to become a user in the Google Workspace account with all the data, you can use the Transfer Tool for Unmanaged users to send an invitation that needs to be approved through email to initiate the transfer of the consumer Google account with its data.