Sale transactions record, including information about receipts and return goods have been recorded appropriately in the entity's accounting system and are appropriately reflected in the financial statements because Sale transactions and credit notes have been recorded in the correct accounting period. sales invoices to ensure that sales occur and reviewed by authorized person and price list and review whether it is approved by authorized person. Check price list in system to ensure that price list in documentation agrees with price in system. And trace to GL to ensure that sales are recorded to GL. Thus, control design for Sale transactions are effective.