Identity reconciliation, also known as identity alignment, is the process of consistently aligning, synchronizing, and managing credentials and associated attributes for an entity or user across different systems or applications within an organization.
Identity reconciliation is the process used to associate existing accounts with existing users. Generally, reconciliation is initiated just after importing users and accounts into the IAM tool in order to obtain the mapping of entitlements.
Reconciliation can be performed manually by associating accounts with users one by one. It can also be automated by associating the correct accounts with the correct users based on criteria such as email address, first name, and last name, etc.
Once the initial reconciliation is complete, it is important to keep the associations up to date by performing this reconciliation very regularly for the orphan accounts that appear regularly.