Office 365 Provisioning Steps
Provision tenants
Configure the tenant name, tenant region, global administrator
Manage tenant subscriptions
Manage the licensing model
Add and configure custom domains
Specify domain name
Confirm ownership
Specify domain purpose
Move ownership of DNS to Office 365
Plan a pilot
Designate pilot users,
Identify workloads that don’t require migration,
Run the Office 365 onramp readiness tool
Create a test plan or use case
Connect existing email accounts for pilot users, service descriptions