How do we perform the AP subsidiary books reconciliation with AP GL at the month end?Traditional way please.

The basic requirements in learning how to reconcile accounts payable records include knowledge of the data that goes into the Accounts Payable General Ledger (AP-GL) control account and how this information is processed. Reconciliation per se is merely a method of ensuring that the balance of all GL control accounts will tally with the aggregate amount of their corresponding subsidiary ledgers. Knowing what transactions are involved and how they are recorded will provide the guidelines for reconciliation.