What is the process of examining supporting source documents (such as invoices, receipts, and shipping records) to substantiate recorded accounting entries called?

Explanation

Core Concept: Vouching works backward from recorded journal/ledger entries to original underlying source documents to test for Existence and Occurrence (overstatement risk). Context/Distractors: Tracing works forward from source documents to financial records to test for Completeness (understatement risk). Exam Tip/Key Fact: Vouching = Ledger to Source (Existence); Tracing = Source to Ledger (Completeness).