Wiley Practitioner's Guide to GAAS 2023, 2nd Edition

61AT-C 320 Reporting on an Examination of Controls at a Service Organization Relevant to User Entities’ Internal Control Over Financial Reporting

• Scope
• Definitions of Terms
• Objectives of AT-C Section 320
• Requirements
  • Management and Those Charged with Governance
  • Preconditions
  • Request to Change the Scope of the Engagement
  • Requesting a Written Assertion
  • Assessing the Suitability of the Criteria
  • Materiality
  • Obtaining an Understanding of the Service Organization's System and Assessing the Risk of Material Misstatement
  • Obtaining Evidence Regarding Management's Description of the Service Organization's System
  • Obtaining Evidence Regarding the Design of Controls
  • Obtaining Evidence Regarding the Operating Effectiveness of Controls
  • Evaluating the Reliability of Information Produced by the Service Organization
  • Nature and Causes of Deviations
  • Subsequent Events
  • Written Representations
  • The Service Auditor's Type 2 Report
  • Other Matters in the Report (Association of International Certified Professional Accountants, AT-C 320.40)
  • Modified Opinions
  • Other Communication Responsibilities
• Illustration: Type 1 Service Auditor's Report (Association Of International Certified Professional Accountants, AT-C 320.75)

SCOPE

AT-C 320 applies to examination engagements to report on controls at organizations that provide services to user entities when those controls are likely to be relevant to user entities’ internal control over financial reporting. Those controls may relate to assertions about presentation ...