Migrating Google Workspace to O365 - creating subdomain

Hi all,

I'm trying to migrate Google Workspace to O365. There is a nice step-by-step procedure but I'm not sure about one part. I follow this: https://docs.microsoft.com/en-us/microsoft-365/admin/moveto-microsoft-365/migrate-email?view=o365-worldwide

What I'm not sure is about creating a sub-domain. Is it enough to create that subdomain in Google Workspace and O365? Or I must create the subdomain (e.g., http://o365.company.com/) also in "Domain Host"? Currently, I'm waiting to get the sub-domain verified in Google Workspace... I know it may take up to 24 hrs, so want to clarify the above meanwhile if it fails 🙂

• I followed the recommendation of creating a subdomain from primary domain... Primary domain "company.com" and sub-domain is "o365.company.com"
• I've added TXT record to Domain Host undet the primary domain "company.com"