Document the body color change first. When filing, use the color change confirmation sheet to link the color code, the sample, and the VIN range so later staff can search by vehicle or order. If a color carries the same sales name but a different color code, the product configuration manager should notify the affected roles and lock the current version. Basic practice for the handover step appears in this guide to buying vehicles in China. With the change closed, mark the old version as superseded and circulate the new color change confirmation sheet to all users.