If you’re planning to move your business from Office 365 to Google Workspace, I want you to stop and think first—because a failed migration is one of the fastest ways to bring a company to a halt. In this video, I walk through the real risks (lost emails, corrupted calendars, and teams unable to work) and the 10 critical tips we’ve learned the hard way after migrating thousands of businesses over the last 15 years. I cover what to do before you touch the migration tool: force an inbox cleanup (including dealing with the 25MB attachment limit), run a small test migration to reveal hidden issues, and build an exemption list to skip Microsoft’s system junk folders. Then I get into the technical “make it actually work” steps—using the right Microsoft admin permissions, temporarily disabling 2FA on that migration admin, and lifting Microsoft’s EWS throttling policy so you don’t crawl along and time out. Finally, I explain the execution strategy that prevents painful delays: migrate everyone at once (it’s counterintuitive but faster), use one migration policy for all users, don’t panic at 99% (labels are applying), and rerun safely if you mess up. And yes—set expectations: this is major infrastructure work, not an afternoon task.