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Identity & Access Deep Dive1 / 2

1 min lesson

Attribute and group mapping

Take "Attribute and group mapping" step by step, then finish with the result that proves it worked.

Step 1 of 2

Attribute and group mappingwhere it silently goes wrong

SCIMSystem for Cross-domain Identity Management. A standard for automatically creating and removing user accounts when people join or leave. Press Enter for the full definition. only works if the IdP attributes map cleanly onto the app's expected schema. A mismatch doesn't always error loudly - it provisions a user with a blank department or no role and you find out when someone can't see the channel they need.

  1. 1Map core attributes. userName, emails, name.givenName/familyName and any app-specific custom attributes the SP requires.
  2. 2Decide group strategy. Either push IdP groups as SCIMSystem for Cross-domain Identity Management. A standard for automatically creating and removing user accounts when people join or leave. Press Enter for the full definition. groups or map IdP groups to app roles. Pick one model per app and document it.
  3. 3Test with one user. Provision a test identity, verify it lands with the right role and attributes, then move it to a different group and confirm the change propagates.
  4. 4Confirm deactivation. The single most important test: deactivate the test user in the IdP and verify access is actually gone in the app, not just hidden.
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Full explanation

Drift and reconciliation

Drift and reconciliationthe reality of distributed state

Apps drift. An admin grants access directly in Slack, a SCIMSystem for Cross-domain Identity Management. A standard for automatically creating and removing user accounts when people join or leave. Press Enter for the full definition. webhook silently fails or an app was provisioned before SCIM existed. Now the app's state diverges from the IdP, which is exactly the gap an auditor or attacker finds.

How drift happens

Manual grants made directly in the app, bypassing the IdP.

Failed/dropped SCIMSystem for Cross-domain Identity Management. A standard for automatically creating and removing user accounts when people join or leave. Press Enter for the full definition. events with no retry or alert.

Pre-SCIMSystem for Cross-domain Identity Management. A standard for automatically creating and removing user accounts when people join or leave. Press Enter for the full definition. accounts never reconciled into the lifecycle.

How you reconcile

Periodic job: pull app users, diff against IdP truth, flag deltas.

Auto-remediate the safe cases (deactivate orphaned accounts); ticket the rest.

Alert on SCIMSystem for Cross-domain Identity Management. A standard for automatically creating and removing user accounts when people join or leave. Press Enter for the full definition. failures so drift never accumulates silently.

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Optional practice

Practice: Attribute and group mapping