The regional dealer rollup tends to go wrong when version, subject, or point in time fail to line up. The most common mismatch comes from distributor orders, end-customer stock, and duplicate customers sitting at different dates, so keep the dates on the record. The basics of the handover step are covered in this guide to buying vehicles in China. The responsibility discussion and any vehicle repair arising from the regional dealer rollup can be logged in parallel, and the case closes only when both are finished.