This glossary defines the key terms used in online marketplace management, MAP policy enforcement, and brand channel control. These definitions reflect how the terms are used in practice by eCommerce teams, sales operations professionals, and brand protection specialists managing multi-channel retail environments.
A
- Advertised Price
- The price a seller publicly advertises for a product on a marketplace.
- Advertised Price Disruption
- Any condition that causes a product's advertised price on an online marketplace or shopping channel to deviate from the brand's intended advertised price. This includes MAP violations, but also pricing irregularities caused by data feed errors, product variant mis-grouping, unauthorized seller listings, and other technical or operational issues. Not every disruption is an intentional seller violation — some require technical remediation rather than enforcement, so distinguishing seller-caused disruptions from data issues is an important first step.
- ASIN
- A unique 10-character alphanumeric code that Amazon assigns to each product in its catalog. ASINs are the fundamental unit of product identification on Amazon, used to track inventory, seller offers, listing health, and performance metrics. Brand channel control analysis is typically conducted at the ASIN level to identify which specific products are experiencing disruption, suppression, or unauthorized seller activity — multiple sellers can list against a single ASIN, which is how unauthorized sellers end up alongside authorized sellers on the same product page.
- Authorized Seller
- A retailer, distributor, or reseller that has entered into an explicit agreement with a brand to sell its products online, subject to the brand's relevant policies, which may include a MAP policy. Authorized sellers are typically listed in a brand's Authorized Seller Program.
- Authorized Seller Program
- A formal structure established by a brand that identifies which retailers, distributors, and resellers are permitted to sell its products online, under what conditions, and subject to what brand-determined policies. Legal counsel can advise brands on structuring a compliant program for the countries and marketplaces where it applies.
B
- Brand Registry (Amazon)
- Amazon's program that lets brand owners register their trademarks and gain access to enhanced tools for managing their brand's presence on the marketplace. Benefits include brand protection tools, the ability to report suspected intellectual property violations, enhanced content features like A+ content and brand stores, and priority support for counterfeit and unauthorized listing reports. Enrolling is a prerequisite for many enforcement actions on the platform and a foundational step for managing an Amazon channel.
- Buy Box
- The primary purchase interface on an Amazon product detail page — the “Add to Cart” or “Buy Now” button that appears when a product has a featured offer. When multiple sellers offer the same product, Amazon's algorithm selects one to feature based on advertised price, fulfillment method, seller performance metrics, and other factors. The Buy Box is commercially critical, since most Amazon purchases go through the featured offer, which is why brands actively track Buy Box win rate as a key channel health metric.
- Buy Box Algorithm
- Amazon's proprietary system for selecting which seller's offer is featured in the Buy Box on a product detail page. It weighs the seller's advertised price relative to Amazon's reference price, fulfillment method (FBA vs. merchant-fulfilled), seller performance metrics (order defect rate, shipping speed, customer feedback), and product condition. Advertised price is a dominant factor — sellers priced significantly above or below the reference price can lose Buy Box eligibility. Understanding how the algorithm responds to MAP violations and unauthorized seller activity is central to managing marketplace revenue.
- Buy Box Suppression
- A condition in which Amazon's algorithm determines that no seller's offer meets the threshold for Buy Box eligibility, so the product page displays no featured offer at all. It typically occurs when advertised prices deviate significantly from Amazon's reference price, listing quality issues are detected, or every offer comes from third-party sellers with insufficient performance metrics. Suppressed Buy Box status directly reduces sales, since most Amazon purchases happen through the Buy Box.
- Buy Box Win Rate
- A metric measuring the percentage of time a brand's authorized sellers hold the Buy Box position on a given product detail page. It's a core indicator of marketplace channel health — a high win rate for authorized sellers at MAP-compliant prices signals that advertised pricing and channel conditions are stable.
C
- Channel Conflict
- A situation in which different distribution channels compete against each other in ways that harm the brand, authorized sellers, or both. Common forms include unauthorized sellers undercutting authorized retailer advertised prices, direct-to-consumer channels competing with retail partners, and cross-border sellers arbitraging regional price differences. Managing channel conflict is a core function of a brand's channel control program.
- Channel Control Program
- The overarching strategic framework through which a brand manages who sells its products online, at what advertised price, and under what conditions. It typically encompasses MAP policy development and enforcement, authorized seller program administration, unauthorized seller identification and removal, supply chain investigation, and marketplace monitoring. An effective program treats these functions as interconnected rather than siloed.
- Counterfeit vs. Gray Market
- Two distinct categories of unauthorized product that brands encounter on online marketplaces, often confused with each other. Counterfeit goods are fake products that imitate a brand's products but aren't genuine, typically infringing trademark and creating consumer safety and brand reputation risks. Gray market goods are genuine products sold outside the brand's intended distribution channel — they're real, but obtained and sold without the brand's authorization.
D
- Distribution Leakage
- The process by which a brand's products enter unauthorized distribution channels, typically because a legitimate distributor or retailer sold inventory to unauthorized resellers, or because products were diverted from their intended channel.
E
- eCommerce Disruption
- A broad term for conditions that undermine a brand's ability to sell consistently and profitably through online channels. It spans advertised price violations that destabilize the competitive environment for authorized sellers, listing suppression events that keep products out of search results, unauthorized seller activity that fragments brand presence and erodes retailer trust, and Buy Box instability that reduces revenue even for compliant authorized sellers.
G
- Gray Market
- Products that are genuine (not counterfeit) but sold through distribution channels not authorized or intended by the brand. Gray market goods may be products intended for one geographic market that get imported and sold in another, products sold outside the brand's authorized dealer network, or products obtained through diverted inventory.
L
- Listing Suppression
- A condition in which an Amazon product listing becomes ineligible for Buy Box display or is reduced in search visibility due to pricing, content, or policy issues. Suppressed listings may still exist in the catalog but fail to generate normal sales because shoppers can't easily find or purchase them. Common triggers include advertised price deviation from Amazon's reference price, missing required product attributes, and content policy violations.
M
- MAP (Minimum Advertised Price)
- An advertised pricing policy established by a brand that sets the minimum price at which the brand's authorized sellers may advertise the brand's products. MAP governs the advertised price — what's shown in listings, ads, and marketing materials — rather than the final retail price.
- MAP Enforcement
- The process of identifying authorized sellers who have violated a brand's MAP policy. It typically involves detecting the violation, documenting proof, sending a notice to the authorized seller, and escalating if necessary pursuant to the terms of the policy.
- MAP Monitoring
- The automated or manual surveillance of online marketplaces, dealer websites, and advertising channels to detect when products are being advertised below the brand's minimum advertised price. Monitoring tools scan multiple channels at configurable frequencies, identify disruptive sellers and offers, and generate alerts or reports for enforcement teams. Monitoring is distinct from enforcement: monitoring identifies violations, enforcement addresses them.
P
- Price Parity
- A policy or algorithmic condition requiring that a product's advertised price on one marketplace not be higher than its advertised price on other marketplaces.
R
- Reseller Policy
- A formal document or agreement that governs the terms under which a brand permits authorized resellers to sell its products. It typically covers product content and branding standards, geographic selling restrictions, prohibited channels or platforms, customer service obligations, and the consequences of policy violations. A reseller policy may include MAP, but is broader than a MAP policy: MAP sets the advertised price floor, while the reseller policy governs the full range of conditions under which the relationship operates.
- Retail Arbitrage
- The practice of purchasing products from retail stores, often during sales or clearance events, and reselling them at a higher price through online marketplaces like Amazon. Retail arbitrageurs are a significant source of unauthorized Amazon listings for brands — they typically operate at small scale individually, but can collectively create a persistent unauthorized seller presence across many categories.
U
- Unauthorized Seller
- A third party who sells a brand's products online without explicit authorization from the brand, or outside the terms of any distribution agreement.
- Unauthorized Seller Velocity
- The rate at which new unauthorized sellers appear on a product listing or across a brand's catalog over time.
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