Exchange migration high-level action plan to Office 365

Exchange migration high-level action plan to Office 365

Easily migrate from Exchange migrate on-premises to Exchange Online within Office 365!

Action plan

  • If you come from Exchange on-premises and have 100, 500 or 2000 mailboxes then migrate at one time in cut-over. (Microsoft best practice)
  • Exchange Migrations are seen as a project in themselves. They are made important. While Microsoft simply moves your mailbox to another database every day. This has no risk at all. If you do it right.
  • Pre-sync all mailboxes to 95%. this means that all data is in the cloud until you decide that the migration can go ahead.
  • If the pre-sync takes 50 days and you are afraid that the delta has become so large, you can always start a second sync so that you are ready to move to the cloud in the migration moment without any problems.
  • Measurability. All preparatory steps are measurable. You can know exactly how much data you can shift to the cloud and calculate the lead time. To be sure, include 2f5% margin for the unforeseen.
  • Communication. Tell everyone that a migration will happen. But above all: why, what is the vision& strategy? Why migrate? "Can we now do 'more' after the migration?"

Why do you put your Exchange mailboxes in the cloud?

  • There are many possibilities in the integrations within Office- and Microsoft 365. Microsoft products and services are deeply integrated into the Microsoft eco-system.
  • Example: Microsoft 365 and Microsoft Teams are close together. In this image you can see that it is important that your Exchange environment is integrated into Microsoft Teams
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Next steps after mailbox migration

Technical migrations are often the end point of an implementation while they are actually the starting point of an interesting cloud environment with enormous possibilities. Be sure to read this article to identify the next steps.

Jasper

Jasper

Welcome to 365tips.be. On this website you can read articles and experiences about Office 365 with focus on Microsoft Teams. Feel free to ask me a question and I will answer it in a blog post. Help others by giving feedback at the bottom of the articles. This blog is made in Dutch. The multilingual website is offered with best-effort machine translation.
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