Microsoft 365 Migration Business Case
This is a practical guide to building a business case for a microsoft 365 migration project — the justification that weighs the costs, benefits and risks of doing the project, adapted to the realities of migrating email, files and collaboration to Microsoft 365.
What a Business Case is
A business case is the justification that weighs the costs, benefits and risks of doing the project. For the full concept and how it works in general, see Business Case. On a microsoft 365 migration project it plays the same role, tuned to this kind of work.
Why it matters for a Microsoft 365 Migration project
Microsoft 365 Migration projects live or die on migrating email, files and collaboration to Microsoft 365. A well-built business case gives the team a shared, explicit reference for exactly that — reducing ambiguity, aligning stakeholders, and making problems visible early enough to act. Skipping it, or doing it generically, is how microsoft 365 migration projects drift into avoidable delay and cost.
What to include
- Problem or opportunity
- Options considered
- Costs and benefits
- Financial appraisal (ROI/NPV/IRR)
- Recommendation
Microsoft 365 Migration-specific considerations
Tailor the business case to the risks that most often derail microsoft 365 migration projects:
- Mailbox and file migration errors
- User adoption and training
- Security and compliance configuration
Example
On a real microsoft 365 migration project, the business case would be shaped by migrating email, files and collaboration to Microsoft 365. In particular, it should explicitly account for the project’s biggest risks — mailbox and file migration errors, user adoption and training, security and compliance configuration — rather than treating them as afterthoughts.