As each invoice is created, the system examines the Company Master record of the company the invoice is being created for. If the AR Autopost field in the Company record is filled in (the field should be loaded with a value from 120-129), the system saves the autopost number in the invoice record. The autopost number in the invoice is then used to determine the general ledger accounts receivable account to be updated when the invoice balance is adjusted. If the AR autopost number in the Company record is not loaded, the system will assign an autopost of 120 to the invoice. This design makes the company autopost an optional field and it allows you to implement additional sub-ledgers whenever it is necessary.