Step 2 - Invoices and Bills Historical Sales and Historical Bills have already been imported into the organisation. You must now process transactions for June 2022, ensuring invoices and bills use the perpetual inventory system to record stock increases/decreases. You will be required to create customers and suppliers where they don't already exist in your accounting system. Important Note: Prices include GST where applicable Sales terms: 7 days after bill date Purchases terms: 30