Thank you for posting this in Microsoft Q&A.
To redeem Microsoft Office 365 for a new domain, you typically need to sign in to your Microsoft 365 account and navigate to the admin center. From there, you can set up your domain under the "Setup" section.
Here are the steps to follow:
- In the Microsoft 365 admin center, choose Setup.
- Select Get your custom domain set up, then Get Started > Add domain.
- Enter the new domain name that you want to add, and then select Next.
- Sign in to your domain registrar, and then select Next.
- Choose the services for your new domain.
- Select Next > Authorize > Next, and then Finish. Your new domain is added.
If you're being prompted to buy instead of redeeming, it is possible that you have not yet registered your domain with Microsoft or you're not using the correct account associated with your Office 365 subscription https://learn.microsoft.com/en-us/microsoft-365/admin/setup/add-domain?view=o365-worldwide#add-a-domain
If you are using a personal email, you may need to create a work account or transition your personal account to a work account.
To transfer a domain from Microsoft to another host https://learn.microsoft.com/en-us/microsoft-365/admin/get-help-with-domains/transfer-a-domain-from-microsoft-to-another-host?view=o365-worldwide
Hope this helps. Do let us know if you any further queries.
Thanks,
Navya.If this answers your query, do click Accept Answer
and Yes
for was this answer helpful. And, if you have any further query do let us know.