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3 Controls (Input level). Supplier coding level – not auditor’s responsibility Proper COA to all GL accounts, leave an audit trail for sampling and confirmation Confirmation control to input information. 3 Controls (Processing level).
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3 Controls (Input level) Supplier coding level – not auditor’s responsibility Proper COA to all GL accounts, leave an audit trail for sampling and confirmation Confirmation control to input information
3 Controls (Processing level) • Data match control before an action take place (e.g. verify supplier information at A/P) • Concurrent update control - requires related qualifications - data dictionary to avoid input error (2500 to 25000) • Data conversion control when chaning GL software
3 Controls (Output level) • User review of output control wrongful supplier, discount rate and quantity • Reconciliation control to eliminate sundry expense account • External data reconciliation control clean fictitious accounts