Payment by Check and Bill of Exchange 
You can post the payment by check manually or using the payment program. The bill of exchange itself can only be posted manually.
If the payment program makes the payment, the bill of exchange is printed but not posted. The payment program only supplies the data for printing the bill of exchange. Posting the bill of exchange is generally not necessary, as you first send it to the vendor together with the check and wait for it to be returned.

The following example shows the postings that are necessary for payment by check/bill of exchange:

Although a check/bill of exchange in Accounts Payable is referred to as a special G/L transaction, you only need a special G/L account for these bills of exchange in exceptional cases, namely when you want to display the contingent liabilities from the bill of exchange posting in accounts.