Reviewed 30 September 2026 · quarterly cycle
What happens if I never open the QC folder?
The parcel proceeds on the assumption of approval, and a defect found afterwards is handled as a return rather than as a rejection, which is a materially more expensive path.
The evidence
The QC window is a window rather than a service, and the reason is operational. A warehouse holding every parcel until the buyer responds would stop moving, so the default when the window expires is to proceed. That default is reasonable from the warehouse side and consequential from the buyer side, because the two paths that follow are priced differently.
Rejecting an item at the warehouse means it goes back to the domestic seller before it has been exported. The cost is the domestic return leg and the time. Returning an item after export means the item crosses a border twice, and the cost includes the international leg in both directions plus whatever clearance handling applies. The gap between those two figures is the entire value of opening the folder.
There is a third path that buyers overlook: asking for one more photograph inside the window. That costs time rather than money and is available even when you are unsure whether something is a defect. If the extra angle resolves the question, you have avoided both return paths. If it confirms a defect, you have preserved your rejection option.
When this does not apply
Where a warehouse offers an extended holding service, the default changes and the window can be extended for a fee. That fee is usually smaller than the difference between the two return paths, which makes it worth checking when a parcel contains something you are unsure about.