Amazon seller glossary.

BFarm's Amazon seller glossary defines 21 core terms private-label brand operators encounter on Amazon: ACoS / TACoS / ROAS (advertising metrics), FBA / FBM / FNSKU / ASIN (operations), A10 / COSMO / Rufus / Amazon SEO (ranking and discovery), A+ Content / Brand Story / Brand Registry (listing and brand tools), Sponsored Products / Brands / Display / DSP (advertising formats), Pan-EU FBA / EFN (fulfillment networks). Each term is grouped by area and cross-linked to related terms.

Definitions written for operators who need clarity, not marketing fluff. Grouped by PPC, SEO, Listing, Operations.

Use these as a reference when reading Academy posts or evaluating Amazon agencies that throw acronyms without context.

  • ACoS — Advertising Cost of Sales
  • TACoS — Total Advertising Cost of Sales
  • ROAS — Return on Ad Spend
  • FBA — Fulfillment by Amazon
  • FBM — Fulfillment by Merchant
  • ASIN — Amazon Standard Identification Number
  • FNSKU — Fulfillment Network Stock Keeping Unit
  • A10 Algorithm — Amazon A10 Search Algorithm
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FAQ

How quickly can results appear? Technical indexing changes can be visible within days, while non-branded organic growth typically requires several weeks of execution and iteration.