Payment company finance teams often inherit a single suspense account labelled “settlement differences.” That label hides six or seven break classes that need different owners and different fixes.
In a settlement process audit we force naming first: timing mismatches, fee schedule drift, FX residuals, merchant holdbacks, partial refunds, chargebacks, and file-late arrivals. Once named, most balances stop looking mysterious.
Sample at least two full clearing cycles with known volume days. Single-day samples hide weekend batching and holiday calendars that payment companies in Hong Kong routinely encounter.
Hand operations a worksheet they can rerun weekly. An audit that ends as a slide deck will not survive the next scheme change or corridor launch.