Planning Office 365 Tenant to Tenant Migration for a growing company demands a defined procedure and step by step. In my experience, the first thing I always do is examine how much data needs to be migrated, like emails, contacts and shared files. Next I determine the migration schedule so that it does not affect the business work. I have utilised Softaken Office 365 to Office 365 Migration Tool and it truly helped me to keep organized as it has selective migration and bulk transfer which is helpful for increasing teams I also tested all with limited data first, before a full migration. It was easy to handle, safe, smooth and especially so when the company was growing fast.