Digital shelf monitoring for brands tracking pricing, availability, sellers and search across retail channels.
42Signals is a digital shelf monitoring platform for brands selling through online marketplaces, retailer websites, and quick-commerce services. It brings together product pricing, MAP policy checks, seller and Buy Box activity, stock availability, keyword rankings, and competitor assortment data. The platform helps marketplace, omnichannel, and analytics teams identify changes on their digital shelves and respond with evidence or data for further analysis. Pricing and availability monitoring updates every few hours, while keyword rankings refresh daily. Teams can receive alerts through channels including Telegram and email, and raw data can be delivered through API or S3.
Tracks product prices across marketplaces and other retail channels every few hours, comparing advertised prices with MAP policies and flagging violations. Alerts can include screenshot evidence for internal or channel enforcement workflows.
Shows which sellers hold the Amazon Buy Box and tracks Buy Box losses. The site also describes identifying unauthorized or grey-market sellers across marketplaces, including Flipkart and Myntra.
Monitors product availability across marketplaces, retailer websites, and quick-commerce services. For quick commerce, availability can be tracked by PIN code and dark store.
Tracks organic and sponsored keyword positions across marketplaces and quick-commerce services, with daily refreshes to help teams assess changes in search visibility.
Tracks competitor pricing, promotions, assortment, and share of shelf, including changes such as a competitor undercutting a price or adding a product.
Sends event alerts through channels such as Telegram and email; the site also lists Slack and SMS. Custom crawls can deliver raw data through API or S3.
A brand or channel team can review an alert for a below-policy price and its screenshot evidence, then use the documented listing information in its own reseller-enforcement process.
Marketplace teams can identify which sellers hold a listing's Amazon Buy Box and review how often the brand loses it, supporting follow-up on seller activity.
Retail and quick-commerce teams can compare availability across channels and locations, including PIN-code and dark-store coverage, to locate stock gaps.
E-commerce teams can follow daily organic and sponsored keyword rankings and compare competitor presence to spot changes in shelf visibility.
CPG analytics teams that need source data rather than only a dashboard can request custom crawls delivered by API or S3 for use in their data stack.
The site says pricing is refreshed every few hours and keyword rankings daily. Quick-commerce availability is described as checked hourly; refresh timing may vary by data type.
The site names marketplaces, retailer websites, and quick-commerce services, including Amazon, Walmart, Target, Best Buy, Instacart, DoorDash, Flipkart, Myntra, Blinkit, Zepto, and Swiggy Instamart. Specific coverage depends on the channel and monitoring scope.
The site describes Telegram and email alerts, and also lists Slack and SMS among alert channels. Alerts can concern pricing, listing availability, Buy Box status, or search-rank changes.
Yes. The site describes custom crawls that deliver raw data through API or S3.
No. The site says 42Signals monitors the digital shelf but does not run campaigns, optimize bids, report sales or ROAS, or replace tools such as Seller Central or Retail Link.
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