MAP monitoring
Strategies for Effective MAP Policy Compliance
Calculate observed MAP compliance from compliant listings divided by evaluated listings. Report the catalogue, channels and check times alongside it, and state any sampling limits.
Report observed compliance alongside the scope of monitoring. A violation count alone does not show how many listings were checked or what changed.
Observed compliance is listings at or above the applicable MAP divided by all evaluated listings, multiplied by 100. Record listings you could not evaluate separately. The violation percentage uses the opposite numerator.
Take a baseline before the first notice goes out
Run monitoring for a period and write down the rate before any enforcement starts. Without a starting number, every later claim about the programme working is an opinion. A quiet quarter and a working programme look identical in the data.
State what the sample covers
A sample can miss affected products or sellers. Its compliance rate may be above or below the rate for the whole catalogue. Record how the sample was selected before making a broader estimate.
If you monitor the full SKU list, report the channels and check times too. If you sample, label the result as observed compliance in that sample and state its limits.
Check at times a seller does not expect
Price changes are scheduled. A seller drops below policy on a Friday evening and comes back on Monday morning. They are compliant in every weekday business hours crawl ever run. Move the checks around, including weekends and public holidays.
Match on more than your own part number
Listings routinely carry a distributor’s number, a wholesale number, or one the seller invented. Matching on your part number alone misses all of those, and it produces the tidiest report you will ever read.
Build a cross-reference from your catalogue and from distributor numbering, then match against the whole of it.
The advertised price is not the listed number
Read the offer covered by the policy. Coupons, bundles and cart prices need an explicit rule and a capture of what appeared. A listed price alone cannot establish whether every part of the offer complies.
What a monthly review should answer
Four questions, in this order. What is the rate this month against last month. Which sellers moved from violating to compliant after contact. Which sellers were contacted and ignored it. Which listings could not be tied to an identifiable seller at all.
The last one predicts next quarter. An unidentified seller cannot be written to, so it stays in your figures until the supply route behind it is found.
We run this for automotive and powersports brands. MAP monitoring and enforcement sets out what the service covers.
Correction, 23 September 2026: the earlier formula calculated violations, not compliance. Sampling can miss offers without biasing every result in the same direction.