Unapplied Cash (Unapplied Credit)
Unapplied cash (also called unapplied credit) is a payment or credit that has reached a vendor's Amazon account but has not been matched to the specific invoice or purchase order it was meant to settle.
Unit Cost is the price that amazon purchased the product. It is calculated by dividing Shipped COGS by Shipped Units. If Shipped COGS is not available we divide On Hand Cost by On Hand Units to determine the Unit Cost.
Variation Error (Broken Variation)
A variation error, or broken variation, is an Amazon parent-child listing whose relationship has failed, so the child ASINs that should sit under one parent ASIN are split apart, missing from the family, or grouped with the wrong products on the detail page.
Vendor API (Selling Partner API for Vendors)
The Vendor API is the vendor-scoped part of Amazon's Selling Partner API (SP-API), a free service that lets a Vendor Central account pull its retail reports and exchange purchase orders and invoices with Amazon programmatically, as an alternative to EDI.
