Hello everyone!
I have two questions:
1) Can I change domain of the users in admin.microsoft.com so they can log into BC with their old email addresses? I have found this instruction, but maybe you have some experience? https://learn.microsoft.com/en-us/microsoft-365/admin/setup/add-or-replace-your-onmicrosoftcom-domain?view=o365-worldwide
2) When I am inviting external accountant into my BC, he/she needs to have email address with the domain of my organization? Or email address (doamin) doesn't matter in this case ?
Thank you in advance!