If you enter an invoice for expenses or asset purchases for more than one balancing segment, you might want to use automatic offset method to keep your payables transaction accounting entries balanced.
If we enable balancing as a automatic offset, payable builds the offset GL account by taking the balancing segment value from the invoice distribution and overlaying it on to the appropriate GL account, i.e liability account from the supplier site.
If we enable account as automatic offset, it takes the opposite approach with one segment being retained from the default GL account and all other segments being retained from the invoice distribution