When any of these elements are included in a transaction, the Interface Keys are combined to determine the applicable Interface Code. In the section Starting Simple: An Example, you can see sample Interface Keys and in the following table are all of the Interface Code possibilities using those Interface Key examples.

You could select different sales accounts for each Interface Code in this table. However, no matter what the Interface Code is, all codes that have the same first Key must use the same AR/Cash account.

The Interface Codes with only the first two keys would only be used for transactions in Accounts Receivable.