A Healthy Transition to Microsoft Office 365 for LEO Pharma with Careful Planning, Coexistence, and Migration-as-a-Service

“Binary Tree’s proven methodology and experience with Notes to Exchange coexistence was the winning combination for LEO Pharma. The coordination of all parties and Binary Tree’s ability to migrate seamlessly, with no impact on our users was very impressive."

- LEO Pharma Project Manager


LEO Pharma is a 100+-year old independent, research-based pharmaceutical company, headquartered in Denmark. The company develops, manufactures and markets pharmaceutical drugs to dermatologic and thrombotic patients in more than 100 countries, and employs approximately 4800 people worldwide.



As part of an overall infrastructure modernization initiative, LEO Pharma was ready to transition from its legacy IBM/Lotus Notes platform to the Microsoft Office 365 cloud. In the course of defining the requirements for the project, the migration team went to work on determining which Notes applications to remediate and which to keep, where to store associated databases, and how to handle shared mailboxes. One additional complexity they identified was that— due to pharmaceutical governance rules— the data had to remain on-premises and couldn’t be replicated to a hosted data center. Planning and performing this migration would be no small task.


Microsoft and Binary Tree set up rich coexistence and interoperability, prior to moving anything, so that users had their normal calendar and free/busy lookup features available, as well as full use of their calendars. Plus, it enabled the migrated Outlook users to continue to use their Lotus Notes email-enabled workflow applications. Binary Tree’s Notes Integration CMT was the solution of choice, not only because the company’s Notes Migrator CMT migration software was used for the mailbox and data transition, but also because the coexistence could remain long-term, to support any remaining application dependencies.


The combination of Binary Tree’s professional services, excellent pricing, and migration expertise was the right prescription for LEO Pharma. The company executed its well orchestrated migration plans as intended—all while abiding with regulatory issues—and without disruption to its employees.


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