What is NOT a use of analytical procedures in auditing?

In auditing, analytical procedures serve several important purposes, primarily aiding auditors in understanding the entity and its environment, identifying areas of potential risk, and developing expectations for account balances. Among the tasks listed, assessing the authenticity of management representations is not an area typically addressed through analytical procedures.

Analytical procedures focus on trends, relationships, and variances in financial information. For example, analyzing margins and sales involves examining the relationships between revenue and costs, which can provide insights into operational performance and identify anomalies that may require further investigation. Similarly, comparing balances with previous periods is an essential analytical procedure that helps auditors assess consistency and detect any irregular fluctuations that might need explanation.

Comparing manual versus system-generated journals may be part of substantive testing, focusing on the reliability of the accounting processes but does not explicitly fall under analytical procedures' primary uses.

In contrast, assessing the authenticity of management representations relies on the auditor’s professional judgment and consideration of corroborating evidence outside the purview of analytical procedures. This process often involves inquiries and obtaining direct evidence rather than merely analyzing data relationships or historical trends. Therefore, option B correctly identifies a function not typically associated with analytical procedures in auditing.