Which audit procedure is most reliable for verifying account receivable existence

Which audit procedure is most reliable for verifying account receivable existence

Which audit procedure is most reliable for verifying account receivable existence?

A. Inquiry of company management

B. External confirmation

C. Checking internal sales invoices

D. Reviewing customer list

Answer: B

Explanation: External confirmation obtains evidence from third parties, which is more reliable than internal documents and oral inquiries.