A.    Use A/P Debit Memo  "Open Debit Against Account" to cover single or multiple invoice balances. Make sure to pay attention to the GL accounts that were used on the original invoices if you want the Debit Memo values to offset the values against those GL accounts.  As soon as the Debit Memo is approved a transaction is generated to be released/posted to the GL. Then the user will apply the General Debit Memo against the Invoice(s) in AP Offset . In this scenario this type of offset should NOT generate any transactions for posting to GL.