SharePoint Online Migration: A Public-Sector Playbook
Lessons from delivering secure SharePoint Online migrations across MOD and Ministry of Justice estates — with zero-downtime approaches.
Why Migration Matters
Public-sector SharePoint estates are large, sensitive, and mission-critical. A migration is never just a lift-and-shift.
Key Principles
- Inventory first — you cannot migrate what you have not catalogued.
- Classify by sensitivity — Official, Official-Sensitive, and Secret need different handling.
- Pilot, then wave — small pilots de-risk the wider rollout.
Common Pitfalls
- Underestimating permissions complexity.
- Ignoring customisations that break in the cloud.
- Skipping a rollback plan.
The InfoCoreSys Approach
We combine automated inventory tooling with a wave-based rollout, ensuring zero downtime for end users.
Important — Not Legal or Tax Advice
This article is published for general informational purposes only. InfoCoreSys is a software and digital consultancy, not a firm of solicitors or tax advisers. Nothing here constitutes legal, tax, or financial advice and should not be relied upon as such. Always consult a suitably qualified professional before making decisions about your contracting status or tax position.
SharePoint and .NET specialist with over a decade delivering secure digital platforms across the UK public sector, including the MOD and Ministry of Justice.
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