The short answer

Review access against current responsibilities, not just the list of accounts created at launch. People change roles, leave, and acquire temporary permissions that may no longer be needed.

Prepared with AI assistance. These are practical scoping recommendations; examples are illustrative, not client results.

Assign a review owner

Identify who can verify each user's business need and who implements approved changes. A technical administrator may know how to remove access without knowing whether the user still needs it. Keep the review tied to the department or process owner who can make that decision.

Inspect more than logins

Include administrative roles, service accounts, external collaborators, and access to exports or uploaded files. Check whether a user's account belongs to the correct customer or operational unit. A person may still need the application while no longer needing their previous level of authority.

Handle departures promptly

Define how the system owner learns that a user has left or changed responsibility. Remove future access using the agreed process while preserving the history of legitimate earlier actions. Avoid deleting historical work simply because the person who performed it no longer uses the system.

Record the outcome

Keep a concise record of reviewed permissions, approved changes, and unresolved questions. Use the findings to improve role definitions and onboarding. The goal is a maintainable operating practice that keeps access aligned with responsibility, not a one-time cleanup followed by another long period of unmanaged accumulation.