Welcome to Episode 421 of the Microsoft Cloud IT Pro Podcast. In this episode Ben sits down for a conversation with Frank Lesniak, the lead of the Microsoft 365 team at West Monroe. In this episode, they dive into the intricacies of mergers and divestitures within Microsoft 365 environments. They discuss the initial due diligence phase, planning and approach, building and configuring new environments, and the final migration and cutover phase. Frank shares insights on common challenges such as integration of different licensing models, the handling of workstations and applications, and the importance of security assessments. The episode provides a detailed look at the methodology and tools used by Frank’s team to streamline these complex processes.

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• Frank Lesniak on LinkedIn
• West Monroe
• Frank Lesniak Github
• Microsoft 365 tenant-to-tenant migrations
• Microsoft 365 inter-tenant collaboration
• Tenant life cycle considerations in multitenant solutions

Frank Lesniak is a Sr. Cybersecurity & Enterprise Technology Architect at West Monroe with nearly 20 years of experience leading consulting engagements involving Microsoft infrastructure technology. His expertise spans modern cloud systems like Azure, Microsoft 365, and Entra ID to classic platforms like Windows Server, Active Directory, and SQL Server. His recent focus has been on Microsoft platform cybersecurity and automating technical processes using PowerShell. In his role, Frank establishes technical project methodologies, leads teams, automates associated processes, and creates internal software products at West Monroe and in the open-source community.