Mailbox Sync - Permissions import

overview this process manages the synchronization of mailbox permissions from a temporary import source into a primary permissions system it ensures that user identities are correctly resolved, permissions are accurately updated, and obsolete or invalid entries are cleaned up process steps resolve user identities attempt to match user identifiers from the import source against a directory cache using a prioritized sequence of identity fields (e g , domain name, upn, display name) handle unknown users assign a placeholder identifier to entries with unresolved or invalid user formats (e g , system generated sids) validation check if any user identities remain unresolved after the matching process, halt further processing and return the list of unresolved users for manual review or automated resolution update existing permissions apply updates to existing permission records where matches are found between the import data and the current system remove permissions for deleted users identify and deactivate permissions associated with users marked as deleted in the directory cache clean up missing permissions deactivate any existing permissions that are no longer present