Moving the content from one Office 365 account to another becomes a daunting task, if you don't have a perfect knowledge & reliable solution. Plus, before proceeding with the transition you have to be aware of the prerequisites of the migration operation to ensure a perfect transition. Unfortunately, Microsoft doesn't provide an efficient solution. So, the question arises in every user's mind how to proceed with the transition.
Well! Come down, there is no need to worry because this article i.e. Office 365 Tenant to Tenant migration, explains to you the entire knowledge about the concept clearly & simply.