Factors to consider when migrating to Office 365

Microsoft Office 365 is an industry standard for modern workplaces. The business favorite suite of MS Office apps like PowerPoint, Word and Excel have been upgraded to comply with the changing business needs. 

MS Office 365 has nearly 120 million users in the business category worldwide. According to CEO, adoptions have increased due to the new service model that sells subscriptions instead of standalone packages. 

The new tools, mobility enhancements, cloud features, and MSME targetted pricing is attracting more businesses to Office 365. Especially, the startup culture and the Enterprize clients with 1-10 M USD valuation. 

If you too are planning to shift to MS Office 365, you’ll need to follow a planned migration procedure that takes properly safeguards your data as you move. 

You could be using any mail client or Office productivity software for now, Microsoft offers a number of ways to make the migration. There are several office 365 migration services providers who manage it for you. 

Factors to Consider While Making the Move


Time is of valuable concern when preparing for migration. The total time taken for the migration depends upon the number of mailboxes and the size of every mailbox. 

According to MS official documentation, mailboxes with a size of less than a GB take about 1 day to migrate, whereas mailboxes with the size of 10-50 GB may take upto 3 days to transfer. 

Migration speed also depends how many mailboxes are to be migrated. The higer the number, the more the time it takes. Further, the data contained in the mailbox also affects migration. If the data is fragmented, then it takes more time; if the data is uniform, it takes lesser time.

Method of Migration

There are a number of ways to migrate. Microsoft provides three different ways depending upon your office requirements. The actual method to be employed should be consulted with a office 365 migration services provider who can carefully asses your exact arrangements.

  • Cutover Migration  

In this method, you carry out the migration all-at-once, wherein all the mailboxes are migrated in one go. If you have a smaller office with less than 100 mailboxes, this could be one of the possible choices for you. 

Cutover migration has an upper limit of 2000 mailboxes, and the workload completes when all the mailboxes have migrated with their data. 

  • Staged Migration

If you wish to make certain mailboxes available first and rest later, you can use staged migration method. The mailboxes are migrated in stages and batches that moved one by one. 

This allows your organization to have quicker migration for important mailboxes and reduce latency. Although this method takes more time, you can resume the work in stages rather than having to wait. 

  • Third Party Tool

In some cases, it’d be actually wise to move the mailboxes using a tool that take care of the process using predefined steps. Software tools use their own protocols to make the shift and can save you time under certain circumstances. 


All the above mentioned techniques require a specialist who could manage the whole migration process. If you have an internal IT team that can make the migration possible, you’ll need to plan with them. Otherwise, you can get in touch with a managed service provider who carry out the migration from end-to-end easily without service interruption.    

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