In order to establish an audit approach / strategy for sales you begin with an evaluation of internal controls. Your audit testing of the internal control system for sales of Keller Ltd (Keller) has found a significant number of instances where large discounts have been given to certain customers without any authorisation. Furthermore, the authorised price list has not been adhered to in many instances. The sales manager has indicated these changes to control procedures were required due to past difficulties in maintaining adequate sales levels.

Required:

1) Identify and justify the key assertion at risk in relation to Kellers sales.

2) Based on the above, develop an appropriate audit approach for sales (in terms of level of tests of controls / substantive analytical procedures / substantive tests of detail required) and justify your approach.

Key assertion at risk:
Justification:
Audit approach: (for below)	Choose Level (None, Small, Moderate, Extensive)
Test of controls
Substantive analytical procedures
Substantive tests of details
Justification of audit approach: