Narrative Summary

I shipped a very large but extremely lightweight architectural diorama worth $400. The physical weight was only 15 pounds, but because the box was 24x24x24 inches, UPS billed me for a Dimensional (DIM) weight of 100 pounds. The box was crushed in transit, destroying the model. I filed a claim, but UPS denied it instantly. Their system checked the Box Maker's Certificate (BMC) on my 32-ECT single-wall box, noting it was only rated for 30 pounds, and rejected the claim because my "100-pound shipment" exceeded the box's structural limit.

The Resolution Strategy

This is one of the most common automated errors in the UPS claims system. The software reads the "billed weight" used to calculate the postage price and incorrectly checks it against the physical weight limit of the BMC.

Using the Authori claims platform, the drafted appeal cleanly separated pricing mechanics from structural engineering using UPS Packaging Guidelines § 3.1.

The appeal letter explicitly argued that an Edge Crush Test (ECT) rating governs physical mass and gravity, not theoretical volume. It pointed out that the actual physical payload was 15 pounds, which is well below the 30-pound physical limit of a 32-ECT corrugated carton. By exposing the automated system's conflation of DIM weight with actual physical weight, the appeal completely invalidated the "structural failure" argument. UPS reversed the software's automated denial and paid the $400 claim.