3.26
| FUNDAMENTALS OF AUDITING
look at the sales system of a whole seller and trace a sale from its initiation through the sales fi gure in the
profi t and loss account. This will involve looking at customer’s orders, how the orders are documented and
recorded, credit control approval, how the goods are selected and packed, raising of an advice note and/or
delivery note, invoicing procedures, recording the invoice in the books of accounts and so on. At each stage
the controls applied are examined.
If the preliminary understanding of the systems and control environment leads the auditor to plan the
audit to include some internal control reliance, then the system needs to be investigated in more depth than
the knowledge provided by walk-through ...