What it means
VPCs are coupons that vendors create themselves and promote on the Amazon product page. Customers can apply VPCs at checkout. VPCs are fee-based and charged to Amazon vendors but can significantly increase sales and visibility.
Amazon Glossary
Coupons / VPC
Vendor Powered Coupon - Verkäufer-Gutscheine
Terms, metrics, and workflows around Amazon Seller, Vendor, and Marketplace operations.