Amazon Operations glossary.

8 Seller Central operations terms defined for Amazon sellers.

  • FBA — Fulfillment by Amazon
  • FBM — Fulfillment by Merchant
  • ASIN — Amazon Standard Identification Number
  • FNSKU — Fulfillment Network Stock Keeping Unit
  • Brand Registry — Amazon Brand Registry
  • Amazon DSP — Amazon Demand-Side Platform
  • Pan-EU FBA — Pan-European Fulfillment by Amazon
  • EFN — European Fulfillment Network
Explore Services See Case Studies Read Academy Book a Strategy Call Request Free Audit
FBA — Fulfillment by Amazon
FBA is the Amazon logistics service where sellers ship inventory to Amazon fulfillment centers and Amazon picks, packs, and ships orders to buyers. Enables Prime eligibility, customer-service handling, and pan-marketplace coverage in exchange for storage and pick-pack fees.
FBM — Fulfillment by Merchant
FBM means the seller fulfills orders directly instead of using FBA. Useful for oversized items, slow movers, or brands with existing 3PL infrastructure. Loses Prime eligibility unless enrolled in Seller Fulfilled Prime (SFP).
ASIN — Amazon Standard Identification Number
ASIN is Amazon's unique 10-character alphanumeric identifier for each catalog item. Every product variation has its own ASIN. Used in PPC targeting, listing references, and account-level catalog management.
FNSKU — Fulfillment Network Stock Keeping Unit
FNSKU is the unique barcode Amazon assigns to each FBA inventory item, distinct from the manufacturer UPC. FBA-bound inventory must be labeled with FNSKU stickers (or use the Amazon Stickerless commingled program, rarely recommended).
Brand Registry — Amazon Brand Registry
Amazon Brand Registry is the program that gives trademark holders elevated tools: A+ Content, Brand Story, Sponsored Brands ads, Brand Analytics search-term reports, and IP enforcement against hijackers. Requires registered trademark in the marketplace country.
Amazon DSP — Amazon Demand-Side Platform
Amazon DSP is the programmatic ad-buying platform for display and video inventory across Amazon-owned (e.g. Twitch, IMDb, Fire TV) and third-party properties. Distinct from Sponsored Display: DSP requires higher budgets ($30K+/month typical minimum) and managed-service or self-service activation. Priced and bought differently from auction-based PPC — CPM/programmatic buying, not pay-per-click.
Pan-EU FBA — Pan-European Fulfillment by Amazon
Pan-EU FBA is the Amazon program that distributes inventory across multiple EU fulfillment centers (DE, FR, IT, ES, PL, CZ) for faster delivery and reduced cross-border fees. Requires VAT registration in each storage country. Alternative is European Fulfillment Network (EFN) — single-country storage with cross-border shipping.
EFN — European Fulfillment Network
EFN stores FBA inventory in one EU country and ships cross-border to buyers in other EU countries. Lower compliance overhead than Pan-EU FBA (only one VAT registration needed) but higher per-unit fulfillment fees and slower delivery. Often the right choice for low-velocity SKUs.