Before developing the audit work program, it is essential to review the contract for evidence of authorization. This step ensures that the contract is valid and approved by the appropriate parties, forming a critical basis for the compliance audit. By confirming authorization, the auditor can ascertain that the contract is legitimate and enforceable, and understand its key terms and conditions, which is necessary for planning and executing the audit effectively. Other steps, such as selecting a sample or assessing risks, are important but should follow after understanding the contract's validity and scope.
Reference:
Institute of Internal Auditors (IIA), International Standards for the Professional Practice of Internal Auditing (Standards), Standard 2201 - Planning Considerations.