A single reseller undercutting your minimum advertised price does not stay a single reseller for long. The others notice, they match, and a policy you spent months negotiating stops meaning anything.
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How do you monitor MAP violations?
Watch each reseller's listing page for your products and select the price region. When an advertised price changes you are alerted with the old and new figures and a timestamped screenshot — which is both the detection and the evidence. It replaces the monthly spreadsheet sweep that most brands know is too slow.
Minimum advertised price policies fail quietly. Enforcement usually means somebody checking a list of resellers periodically, which is slow, incomplete, and produces no evidence beyond a screenshot taken after the fact.
The detection problem is straightforward: a reseller's listed price is on a public page, and a change detector notices when it moves. The valuable part is that it produces a dated record at the moment of the change, which is exactly what an enforcement conversation needs.
This guide covers setting that up across a reseller network, and is clear that detection is not enforcement.
Worth being precise, because the terms get used interchangeably and are not the same thing.
A minimum advertised price policy governs the price a reseller may display publicly. It does not set the price they sell at, which is why "add to basket to see price" exists as a workaround.
Manufacturer's suggested retail price is a recommendation. MAP is a term of your reseller agreement, with consequences attached.
Which is exactly what a change detector reads. If a reseller hides the price behind a basket action, that is itself a signal worth noticing.
Search pages reorder constantly and produce noisy alerts. The individual product listing on each reseller is the stable page.
Detection is only half of it. The other half is being able to show what you saw and when.
Every recorded change stores a full-page screenshot of the listing before and after, the changed price highlighted, a word-level diff and a timestamp. That is considerably better than a screenshot someone took a week later, and it exists automatically rather than because somebody remembered.
The last thirty versions of each listing are retained, so a reseller who repeatedly drops below MAP and restores it produces a documented pattern rather than a single incident. For a repeat violator, the pattern is usually the more useful thing.
This is detection and documentation. The enforcement — the notice, the escalation, the commercial consequence — is entirely yours, and no monitoring tool changes that.
Four of these are common enough that you should assume you will hit them.
The standard way round a MAP policy is to hide the price until the item is in the basket. We read public pages, so a price that only appears in a basket is invisible to us — and to every other automated checker.
A marketplace page showing a rotating buy box gives us whichever seller was winning when we checked, not a complete view of every offer.
Some large marketplaces refuse non-browser traffic. We identify ourselves honestly, so those will refuse us.
You watch listings you know about. A reseller you have never heard of, listing on a marketplace you do not monitor, will not appear. Dedicated MAP platforms crawl for unknown sellers; we do not.
Detect and document when a reseller advertises below your minimum price.
One listing page per product per reseller. This list is the work; the setup is quick.
Click the displayed price so surrounding recommendations and reviews are ignored.
Violations often appear over a weekend and are restored on Monday, so daily checks miss the pattern entirely.
Or leave it off and review every move — with prices, small changes usually matter.
The account manager for that reseller, not a shared inbox.
Each change stores a timestamped screenshot and diff, ready to attach to a notice.
Typically about 10 minutes from start to finish.
Uptime monitors, watched pages and heartbeats each get their own allowance, so adding a page watch never costs you a monitor. SSL and domain checks ride along with the monitor they belong to and use nothing extra.
| Plan | Monitors | Watched pages | Heartbeats | Fastest interval | Alert channels | Price |
|---|---|---|---|---|---|---|
| Free | 1 | 1 | 1 | Every 30 minutes | 1 email address | $0 |
| Founding Member first 20 only | 25 | 25 | 25 | Every 5 minutes | Email + webhook & chat | $5/mo |
| Basic | 10 | 10 | 10 | Every 10 minutes | Email + webhook & chat | $8/mo |
| Growth | 50 | 50 | 50 | Every 5 minutes | Email + webhook & chat | $19/mo |
| Pro | 100 | 100 | 100 | Every 60 seconds | Email + webhook & chat | $34/mo |
Annual billing is cheaper on every paid tier. The pricing page is the authoritative list.
Every recorded change is compared word by word and kept with a before-and-after image. This is the real output, shown with worked example data.
Price fell from $49 to $39, and an annual discount was added.
The item is available again and the basket button returned.
A new subprocessor was added in another jurisdiction.
The free plan sends to one email address. Every paid plan adds the chat and webhook channels below, with 2 to 10 destinations depending on the plan. However many alerts you receive, the price does not change — nothing here is metered or charged per alert.
There are no voice calls and no SMS. If a phone call at 3am is a hard requirement, say so before you subscribe — we would rather tell you now than refund you later.
Watching the prices your resellers advertise publicly, to detect when one displays below the minimum advertised price in your agreement. Automated monitoring replaces a periodic manual sweep and produces dated evidence at the moment the change happens.
MSRP is a suggested retail price — a recommendation. MAP is a policy term in your reseller agreement governing the price they may advertise publicly, with consequences attached. MAP governs advertising, not the final selling price, which is why price-in-basket workarounds exist.
No. If the price only appears once the item is in a basket, it is not on the public page and no automated checker can read it. That is the standard workaround and it defeats this approach and every competing one.
No. You watch listings you supply. Dedicated MAP platforms crawl marketplaces for unauthorised sellers; we watch pages you point us at. If discovering unknown violators is your main problem, we are not the right tool.
A timestamped full-page screenshot of the listing before and after, the changed price highlighted, and a word-level diff. The last thirty versions of each listing are kept, so a repeat violator produces a documented pattern rather than one incident.
Five minutes to hourly. Violations frequently appear over a weekend and are restored before Monday, so a daily check will show you nothing at all.
25 on the $5 plan, 50 on Growth, 100 on Pro. That is per listing page, so a brand with ten products across ten resellers needs a hundred and would want Pro.
No. It detects and documents. The notice, the escalation and the commercial consequence are yours — no monitoring tool changes that part.
Last updated August 4, 2026 · Written by Amit Gupta, founder of MonitoringDaddy
Free plan watches one listing. $5/mo watches 25, with dated evidence of every change.