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Home›Our work›Identity & security
Identity & security

Consolidating identities without breaking access

Migrating thousands of users from one directory to another

Consolidating identities without breaking access
In brief

Migrating a user base from one directory to another, at scale, without downtime or loss of rights, is a precision exercise. Here's how.

The problem

Mergers, reorganizations and IT modernizations often require consolidating two directories into one. On a critical platform, thousands of users and their group memberships must follow — without anyone losing access along the way.

Why it's hard

These aren't just accounts: they're group memberships that determine permissions. A sloppy migration cuts legitimate access or opens illegitimate access. At scale, the smallest systematic error multiplies by the thousands.

The approach

Custom migration tooling to map, validate and transfer accounts and memberships, with reconciliation checks at every step — to verify that each user arrives with exactly the rights they should have.

The proof

Nimbax migrated several thousand users and their group memberships between directories, with no service interruption and rights fully preserved.

Takeaway

At scale, reconciliation isn't a luxury. It's what separates a successful migration from a security incident.

Let's talk about your directories

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