Some shortage claims start before anything leaves your warehouse. Amazon's own V
By James Wakefield ๐ก ยท November 14, 2026 ยท Curated by George's Blog
Some shortage claims start before anything leaves your warehouse.
Amazon's own Vendor Central training has an example. A brand selling canned water in six-packs got a PO for 100 units and shipped 100. Amazon expected 600. The difference came back as a shortage.
The cause was one setting on the product: IBQ, the inventory bundle quantity. It no longer matched the two settings beside it, IPIP (items per inner pack) and IPMP (inner packs per master pack). Someone had set it for an old way of shipping and nobody changed it back.
One for next week. Take the products you sell in cases and check IPIP and IPMP against what actually goes in the box. If a PO's units or unit cost look wrong for one of them, ask Amazon what IBQ is set to.
Amazon's own advice when a PO looks wrong: cancel that line and contact them before you ship.