The challenge
Consolidating a large workforce identity estate meant preserving access continuity while reducing dependence on a legacy provider. The migration had to remain observable, reversible, and understandable to operations.
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Anonymized architecture · Workforce migration
Enterprise identity consolidation
Migration of more than 10,000 identities from a legacy IdP to Microsoft 365, with automated provisioning and a zero-downtime cutover.
Architecture focus
A controlled lifecycle migration with separate readiness gates for provisioning, authentication, and access policy.
Demonstrated capabilities
- Migration strategy
- Lifecycle automation
- Authentication readiness
Decision log
Architecture decision
The program treated migration as a controlled identity lifecycle rather than a directory copy. Provisioning, authentication readiness, and access policy were validated as separate gates before identities reached the target control plane.
Control model
Microsoft Entra ID became the target authority for workforce access. Automated provisioning reduced manual drift, while passwordless-ready controls and staged policy validation protected the transition path.
Outcome
More than 10,000 identities moved without service interruption. The result was a simpler control plane, a repeatable provisioning path, and a foundation for stronger authentication controls.