Hello,
Pardon my long question. I have a situation in which I need some guidance. Apologies ahead of time, I have been spending a lot of time researching o365 migrations from mutiple sources so my information may be scattered.
The company I work for is part of a wider organization that includes a total of 3 companies. Company A is the top level executive company that consists of 5 individuals who use GoDaddy as their email service. Company B uses an on-premises Exchange 2003 server with 54 users, Company C uses a third party hosted Exchange service through a hosting vendor and has 77 users.
The goal:
-Combine the 136 users into a single tenant and use Exchange Online. Utilizing shared calenders, delegate admin staff to access email, appointments and share contact information.
-Keep the company domain names ex. user1@companyA.com, ...