10.3 Substantive Procedure
Substantive procedures are designed to detect material misstatement at the assertion level. Substantive procedures consist of tests of detail and analytical procedure.
Tests of detail:
Tests of detail on transactions are used to obtain audit evidence regarding the assertions related to transactions.
Tests of details of transactions trace a transaction through a system, for example to ensure that a despatch is correctly recorded as a sale or that a purchase entry recorded in the daybook is supported by a purchase invoice, goods received note and purchase order.
If no reliance is placed on controls, the level (i.e. sample size) of transaction testing will be high. If reliance can be placed on controls, the level of transaction testing will be lower.
Analytical procedures:
Evaluations of financial information through analysis of plausible relationships among both financial and non-financial data.
Analytical procedures also encompass such investigation as is necessary of identified fluctuations or relationships that are inconsistent with other relevant information or that differ from expected values by a significant amount.

