Transaction Deltas

Transactions are created, updated, and deleted when you carry out actions in PSA. The old and new values of the transactions are stored in transaction delta records. PSA uses transaction delta records to incrementally calculate actualsClosed Totals for a given time period. on a periodic basis.

Transaction deltas record unprocessed transactions that have been queued for processing. You can process transaction deltas immediately as described in Recalculating Actuals with the Actuals Verifier or you can schedule them as described in Work Queue Manager and Scheduled Apex.