Home / Glossary
Glossary and FAQ

Price Monitoring Glossary and Frequently Asked Questions

Plain definitions of the terms you will meet in competitor price tracking, repricing, and MAP compliance, followed by answers to the questions store owners ask most.

Anchor price
A price a shopper sees first and uses as a reference when judging other prices. On a product page the anchor is often the crossed-out original price or the most expensive option in a set.
Buy box
The featured purchase area on a marketplace listing that is awarded to one seller among several offering the same product. Price is a major factor in winning it, alongside fulfillment speed and seller performance.
Charm pricing
Setting prices that end just below a round number, such as ending in .99 or .95, so the price reads as lower than it is. One of the most common psychological pricing tactics.
Competitor set
The specific group of sellers a store chooses to monitor because customers genuinely compare against them. A deliberate competitor set is usually small and excludes sellers whose offer is not comparable on shipping, service, or trust.
Cost-plus pricing
A pricing method that starts from the cost of a product and adds a fixed markup or margin. It is simple and protects against selling at a loss, but it ignores what competitors charge and what customers will pay.
Dynamic pricing
Adjusting prices in response to changing conditions such as demand, inventory, time, or competitor prices. Small stores usually apply it through simple rules on a subset of products rather than continuous algorithmic changes.
GTIN
Global Trade Item Number, the family of standardized product identifiers that includes UPC and EAN barcodes. GTINs make product matching across competitor sites far more reliable than matching on titles.
Guardrail
A limit built into a repricing rule that prevents it from making a harmful change, such as a floor price, a ceiling, a maximum daily change, or an exclusion list. Guardrails are what make automation safe to run unattended.
Landed cost
The full cost of getting a product into stock and ready to sell, including purchase price, freight, duties, and handling. Price floors should be set from landed cost rather than from the supplier invoice alone.
Loss leader
A product priced at or below cost to attract customers who are expected to buy other, profitable items. It is a deliberate strategy, not a repricing accident, and should be excluded from automated rules.
MAP (Minimum Advertised Price)
A policy set by a manufacturer or brand that specifies the lowest price at which resellers may advertise a product. It restricts advertised prices, not necessarily the final sale price, and violations can cost a reseller its supply.
Markup
The amount added to cost to arrive at a selling price, usually expressed as a percentage of cost. It is easy to confuse with margin, which is expressed as a percentage of the selling price.
Monitoring cadence
How often competitor prices are checked, from several times a day to monthly. The right cadence depends on how volatile the category is and how quickly the store can act on what it learns.
MSRP
Manufacturer's Suggested Retail Price, the price a manufacturer recommends for a product. It is a suggestion rather than a rule and is often used as an anchor when displaying a discount.
Price ceiling
The highest price a repricing rule is allowed to set for a product. Ceilings prevent an upward move, such as during a competitor stockout, from producing an outlier that damages trust.
Price elasticity
A measure of how much demand for a product changes when its price changes. Highly elastic products lose many sales when the price rises; inelastic products do not, which is why some items can be priced above competitors without losing share.
Price floor
The lowest price a repricing rule is allowed to set for a product, ideally calculated from landed cost plus a minimum acceptable margin. The most important guardrail in any pricing system.
Price history
A time series of recorded prices for a product, usually with stock status and sale conditions, across one or more sellers. Histories reveal promotions, seasonality, follower behavior, and reactions to your own changes.
Price index
A single number summarizing how a store's prices compare to a competitor set across many products, often expressed relative to a baseline of 100. Useful for tracking overall positioning without reading every product.
Price parity
The state of charging the same price for a product across channels or matching a competitor exactly. Some marketplaces and suppliers expect parity, which constrains how freely a store can reprice.
Price positioning
Where a store deliberately places itself relative to competitors, such as lowest, mid-market, or premium. Positioning should be decided before rules are written so that the rules serve the strategy.
Price war
A cycle in which competitors repeatedly undercut one another, eroding margin for everyone. Automated matching without floors is the most common way small stores stumble into one.
Product matching
The process of confirming that a competitor's listing is the same product, variant, quantity, and condition as the one you sell. Bad matches produce misleading comparisons, so new matches deserve human review.
Reference price
The price a shopper expects to pay for a product based on past experience or a displayed comparison. Stores are often judged on a handful of well-known reference products, which is why those deserve the closest monitoring.
Repricing rule
A written condition and action that changes a product's price when the condition is met, such as matching a competitor within a band if the result stays above the floor. Rules should be tested in alert-only mode before they are allowed to act.
SKU
Stock Keeping Unit, a store's internal identifier for a specific product variant. SKUs are unique to the store, so they must be mapped to shared identifiers like GTINs to match products across competitors.
Stockout
A period during which a seller has no inventory of a product available to buy. A competitor's stockout removes their price from the customer's comparison and can create a short window to hold or raise your own price.
Terms of service
The published rules governing use of a website. They often address automated access, and respecting them is part of collecting competitor prices without crossing legal or ethical lines.
Unilateral pricing policy
A policy a manufacturer announces on its own that sets a minimum selling price and states it will stop supplying resellers who sell below it. Unlike MAP, which covers only advertised prices, a UPP covers the price actually charged.
Web scraping
Automated collection of data from web pages, including competitor prices. It must be done with respect for terms of service, access controls, request volume, and privacy to stay on the right side of the line.

Questions people ask

What is competitor price monitoring?

It is the practice of regularly collecting the prices other sellers charge for products you also sell, recording them over time, and using the results to make pricing decisions. It covers everything from a weekly manual check to an automated service that records prices, stock status, and sale conditions across many competitors.

Which competitors should I monitor?

Monitor the sellers your customers actually compare you against, which is usually a small group. Look at who appears alongside you in search and shopping results, who customers mention in support conversations, and whose offer is comparable on shipping and trust. A large set of irrelevant sellers produces noise, not insight.

How often should competitor prices be checked?

It depends on how volatile your category is and how fast you can act. Most small and mid-sized stores check their core products daily to weekly and their long tail monthly or less. Checking more often than you can respond adds cost without adding value.

Is it legal to scrape competitor prices?

Publicly displayed prices are generally treated as public information in the US, but the method matters. Respect terms of service, keep request volumes modest, never bypass logins or access controls, and never collect personal data. Ethical lines matter too, such as not posing as a customer to extract pricing.

What is the difference between MAP and MSRP?

MSRP is a manufacturer's suggested selling price and carries no obligation. MAP is a minimum advertised price, usually announced by the manufacturer on its own terms, that resellers are expected not to go below in advertising, and violating it can end a supply relationship. MAP governs advertised prices, so some sellers show a lower price only in the cart.

Should I always match the lowest competitor price?

No. Match when the product is a reference item customers use to judge your store, the competitor is one they genuinely compare you with, and the matched price still clears your floor. Hold when your offer is differentiated, the competitor's cut looks temporary, or matching would take you below cost.

How do I set a price floor?

Start from landed cost, which includes purchase price, freight, duties, and handling, then add the minimum margin you need to cover overhead and stay profitable. Set floors per product or per category rather than using one number for everything, and never let an automated rule go below them.

What can a price history tell me that a single check cannot?

A history reveals which competitors run scheduled promotions, who leads and who follows, how stable each seller's prices are, and how they respond after you change yours. It also shows seasonality and helps you tell a temporary promotion from a lasting price change.

What should I do when a competitor is out of stock?

If you have inventory, their price no longer matters to the shopper for as long as the stockout lasts. You can hold or modestly raise your price within your ceiling. Watch for the restock and return to your normal positioning when it happens, so the move does not become an outlier.

What is repricing automation and is it safe for a small store?

Repricing automation applies written rules to change prices without a person acting each time. It is safe when the rules have guardrails, including floors, ceilings, maximum daily change, and exclusions, and when you begin in alert-only mode, then automate a small group of products, then expand after reviewing results.

How do I know if my product matches are correct?

Match on shared identifiers such as GTINs where possible, and review any match made on title or image alone. Flag comparisons that look extreme, such as a competitor price far below everyone else, because they are often a variant, pack size, or condition mismatch rather than a real gap.

Does psychological pricing still work for online stores?

Some tactics do and some have worn out. Charm pricing, clear anchor prices, shipping thresholds, and good, better, best option sets still influence decisions. Tactics that rely on shoppers not being able to compare easily work poorly online, where comparison takes seconds.

How do I measure whether price monitoring is paying off?

Track gross margin per product and tier, conversion on monitored products before and after changes, and the share of your catalog priced within a reasonable band of your competitor set. Review monthly and be willing to retire rules that do not improve those numbers.