The primary purpose of issuing a preliminary communication to management of the area under review is to help them develop more responsive and timely action plans. Preliminary communications, such as interim reports or discussions, inform management about the audit's progress, preliminary findings, and potential issues. This early communication allows management to begin addressing identified issues before the final report, leading to more timely and effective corrective actions. It also fosters collaboration and ensures management is engaged in the remediation process from the outset.
Reference: The IIA's International Standards for the Professional Practice of Internal Auditing, Standard 2410.A1 - Communication Criteria.