> Go to EAC > Recipient > Migration
> Create Migration Batch by clicking the + icon. Choose Migrate to Exchange Online
> Choose the Cutover Migration. Click Next
> Fill the blanks:
Email Address: Any email address that you will migrate
Account with privieges: The enterprise/domain account of your onprem exchange server
Password: Password of the enterprise/domain account.
> Create the Migration Endpoints.
Exchange Server = the name of the Exchange Server. Check it by opening the Exchange Server > This PC or My Computer> Right click and check the FULL COMPUTER NAME
RPCProxyServer = their OWA url without the https. (Ex, mail.domain.com)
Add any email address that will receive the error and select if you want to start the migration automatically or manually.
Should you have one, click here