Second reviewers hate reconstructing why a 90-day balance was selected. If your aging workpaper is a PDF dump with highlighter marks, you have already lost an hour of their week.
Anchor each sample to a bucket rule
State whether you stratified by days outstanding, by customer concentration, or by credit-note activity. Store that rule as a note on the auditing app engagement — not in a private chat.
Attach authorization, not just balances
Aging integrity is rarely about the number alone. Link credit-note approvals and write-off requests to the same customer record you sampled. Gaps become visible without a separate binder.
Explain timing differences once
Cash in transit and lockbox lags confuse bilingual packs. A short, reused paragraph on timing conventions in your Korea close calendar prevents every reviewer from asking the same question.
See also our Control Lab AR scenario pack for practice datasets.