Here is an example of a Once Off sale and how it effects the General Ledger.

Sale

In this example it is an Account Sale

Cost: $ 1,000

Retail: $ 1,650 (Inc)

Open

Open

Receival

Goods are Received, then the Creditor Invoice is created.

Cost: $ 1,000

When the Once Off item is Received, it does the following postings.

Where the “Purchases” account is loaded from the POS settings below.

When the Creditor Invoice is created, it posts the following:

POS Settings

It was using these POS settings