During a managed migration tasks performed in the admin console of the tenant and/or DNS are not included in Cloudiway services. Please find below the scope of work to be done by the customer to transfer the domain between Office 365 tenants:

Color code: Customer Responsability / Cloudiway Consultant Responsability

1. Before the switch, modify MX record TTL to smallest time allowed
2. Cloudiway configures mail routing between the source domain names and the technical target domain (eg: target.onmicrosoft.com sample:
   

   Source SMTP	Target SMTP
   companyA.com	target.onmicrosoft.com
   companyB.com	target.onmicrosoft.com

3. When you’re ready to switch, modify your MX records to point to the Cloudiway IP
4. Run a final delta pass to sync the latest emails
5. Now new mails arrive to the target and old mails are all migrated to the target. You’re now safe to detach the domains
6. Run the script to remove domain from objects (see script in Move domain) 
7. Remove Domain from Tenant
8. Add domain to target tenant
9. Add TXT DNS record
10. Verify domain ownership
11. Reassign the domains to the users: Modify SMTP and UPN on Target AD and sync the changes
12. Modify your MX records to point to target Office 365
13. The migration is completed