As someone who’s spent years battling unauthorized sellers around the world and now helps brands through Sigil’s automated brand protection platform, I’ve seen firsthand how painful MAP (Minimum Advertised Price) violations can be for brands. Today, I’m sharing what I’ve learned about creating, implementing, and enforcing effective MAP programs on Amazon and Walmart. Keep in mind, this is not legal advice. This is an educational article. If you have legal questions about your company, please consult an attorney.
Understanding MAP Pricing: The Legal Foundation
What is MAP Pricing and Why It Matters
A Minimum Advertised Price (MAP) policy sets the lowest price retailers can advertise your products, without restricting actual sale prices. While retailers can sell below MAP, they cannot advertise those lower prices in their marketing or listings. If a retailer violates this requirement, advertising products below the threshold price, then they can be penalized by losing the right to sell those products for some period of time. Many brands utilize a three-strike policy with incrementally more severe restrictions, but some have a one-strike policy that can eliminate selling rights for long periods. I have seen both strategies be effective.
This is considered legal in the United States, and not a violation of anti-trust or price fixing laws, based on the Colgate doctrine, from the Supreme Court case United States v. Colgate & Co., 253 F. 522 (1918). Legality hinges on the absence of a formal agreement between the manufacturer and the retailers regarding pricing.
Another common tool is a Unilateral Pricing Policy (UPP) which is beyond the scope of this article. DM me on Linkedin if you have questions about a UPP.
The Strategic Value of MAP Programs: Protecting Brand Equity and Profitability
In my experience working with brands across multiple industries, effective MAP programs deliver measurable benefits:
- Brand Value Protection: Limits price erosion that can damage premium positioning
- Profit Margin Stability: Creates fair competition among retailers without constant price wars
- Equal Playing Field: Small retailers can compete based on service and expertise rather than just price
- Customer Trust: Consistent pricing across channels builds consumer confidence
Research shows that brands with strong MAP enforcement see significant improvements in profitability across their entire partner network. Brands that enforce MAP policies see an average of 7-12% increase in revenue compared to those without such policies, according to the dynamic pricing software company Sciative. Also, McKinsey’s study of the Global 1200 found that raising prices by just 1% (with demand remaining constant) resulted in profits increasing on average by 11%. Clearly, there is a great deal of valuable opportunity with a well-implemented MAP program. And when retailers aren’t constantly undercutting each other, they can invest in better customer service, training, and marketing support.
Effective MAP Policy Framework
Essential Policy Components
After reviewing many dozens of MAP policies in my legal practice, I’ve identified the critical elements every effective policy must include:
Clear Scope Definition: Specify exactly which products and SKUs are covered, and maintain a live, accessible product list. Ambiguity creates enforcement challenges. About a decade ago, the common (and considered best practice) was to put all of your SKUs on a MAP policy. That is changing today. In 2025, more and more brands are restricting which SKUs fall under a MAP policy to optimize their enforcement spend on their most valuable products.
Pricing Structure: There are several ways to set your MAP pricing. In my experience, I typically see brands use one of these methods:
- Set MAP equal to MSRP. This is nice for keeping things consistent and making enforcement easy. In a good, unilaterally enforced system where you cut off the retailer for a violation, then this makes the advertising price and in-cart price equally relevant, and either can justify the same response from the brand.
- Set MAP slightly below MSRP. This is a bit more retailer friendly, because it allows the retailer to run promotions to drive traffic without running afoul of the policy. The brand has to track different price points and be clear on how it enforces both. As a result, some brands I’ve seen will eliminate the MSRP pricing entirely and just use the MAP price.
- Wholesale cost plus a desired margin percentage. This is the most common approach I see, and frankly, the one that I recommend. Given the sensitive nature of pricing and wanting to avoid legal scrutiny, having an advertising program (MAP) entirely distinct from the selling program (MSRP) eliminates some legal risk.
Advertising Restrictions: Define what constitutes “advertising” versus “selling.” MAP applies to public price displays, not in-cart or checkout pricing. But what happens when a customer uses a Chrome plugin that grabs in-cart prices when searching on Google Shopping? Will you treat that as an “advertising” violation under the MAP policy? (I wouldn’t.)
Enforcement Consequences: As I mentioned above, many brands use an escalating ladder of warnings, while others have a one-strike policy. Both work. Just be very clear on your policy and be consistent on how you approach it. But to add a bit more nuance, implementing a one-strike-and-you’re-out policy typically requires a very strong brand, because it will turn off a lot of retailers. So, if you have the type of brand that retailers deeply want, you may want to consider this approach. Otherwise, for the majority of brands, they will need to strike a balance between brand-friendly and retailer-friendly elements of the MAP policy. (That does not mean you should negotiate those elements–brands should implement them unilaterally.) A three-strike program is common, typically starting with a warning, a partial supply termination, and then a complete supply termination. Keep in mind, consistency in enforcement is crucial for legal compliance. No special treatment for retailers, no matter how small, or how big.
Unilateral Statement: Include language emphasizing that this is your policy, not a mutual agreement with retailers. This is considered best practice to add protections under antitrust law.
Waiver Provisions: This is a bit more advanced, and requires more consistent management. But many brands plan for annual and seasonal promotions, and want to allow retailers to run coupons, discounts, promotions, etc. If this is the case for your brand, you’ll want to have provisions in your MAP policy when you “waive” the policy requirements. This should be driven by the brand’s strategic marketing plan, not the retailers, in order to avoid any suspicion that the pricing policies are being negotiated as an agreement. I have seen brands maintain a separate calendar document that lists out the dates each year when the MAP requirements are waived, giving their retail partners several months notice to plan for the events. You have to update the calendar each year (and I recommend you maintain the calendar up to 2 years in advance if you’re working with major Big Box retailers), but that’s easier than updating your MAP policy document.
Who Should Own MAP Enforcement
Based on my work with hundreds of brands, there is no fixed rule for who should own this. Generally speaking, it’s going to be a blend of departments based on your needs. What you need to think about is balancing control with implementation. By its nature, a MAP program is intended for uniformity and consistency, applied unilaterally from the brand, all of which is best implemented from a centralized source. But brands grow through omnichannel sales into more and more markets, each of which have their own nuances for success and implementation, requiring some coordination between departments and territories to make implementation effective.
In my experience, most commonly I see MAP programs owned by:
- Sales Management: sales-driven brands seeking to maximize revenue and profits tends to put management of MAP under the sales leadership who can coordinate this across sales channels. That said, there is a tradeoff when sales teams (who are incentivized to sell) are also instructed to policy and restrict their own sales opportunities.
- Legal/Compliance: I see this typically with larger, legacy brands who predated the rise of MAP programs in the late 00s and early 10s. As established brands with a lot to lose, they prudently evaluated this new tool (and its shifting legal position) through their legal and compliance department. This is a safe choice, but can cause some friction with the sales leadership.
- Brand/Marketing: a MAP policy is, in part, intended to protect the brand’s integrity and customer experience with the brand. In that case, it makes sense for the marketing team to own MAP, and I often see this with industries where sales departments are heavily brick-and-mortar driven. When these brands expand to eCommerce, they typically see it as an extension of their advertising teams, who have the copy/images needed to create an Amazon listing. They then own the Amazon channel, and run into pricing problems, ultimately advocating for MAP programs. As you can see, there is often friction between the marketing and sales leaders in this type of arrangement.
- Operations: I see operations leaders taking on MAP in smaller brands, typically, where the leadership team wears multiple hats. This is typically the sign of a fast growing brand with strong distribution and operational talent that is growing lean without heavy departmental bureaucracy.
- Hybrid: one of the most successful structures I’ve seen are when brands utilize a hybrid approach, giving planning and creation authority to a centralized role (e.g., legal), and enforcement and compliance to departments that interact more directly with the retail partners (e.g., sales or ops).
Why this matters: whichever department owns your MAP program is going to be leading the communication with Amazon and Walmart over these issues. But Amazon and Walmart are notoriously relationship-driven organizations, by which I mean, who you know at each company matters a great deal. If you are responsible at your company for enforcing MAP and issues arise on Amazon and Walmart, be sure to include the relevant team members from your company to help manage the communication.
Implementing MAP Across Multiple Sales Channels
Channel Coordination Strategy
One of the biggest challenges I see brands face is maintaining MAP consistency across diverse sales channels. Your MAP policy must address:
Direct-to-Consumer: Your own pricing sets the standard and demonstrates commitment to the policy. This includes things like running holiday promotions, liquidating old stock, or subscribe-and-save discounts. If you don’t keep to MAP, you should not expect your retailers to do so.
Authorized Retailers: These partners need clear guidelines about compliance expectations. One of the most common issues that comes up is automated repricing technology. If your retail partners utilize automated repricing tech, make sure to communicate to them your expectations for how they can comply with your MAP program, e.g., that have set up safeguards in place to avoid automated MAP violations, or offer a 1-2 day grace period before a violation triggers to allow them to correct the automated repricing, etc. Have this conversation before it starts to happen. This will avoid finger-pointing later and lead to a much more effective
Wholesale Distributors: Good distribution partners will make sure to communicate your MAP policy and expectations to any retailers they supply. Make sure to provide them with all the documentation, guidance, and information they might need.
Marketplaces: Amazon, Walmart, eBay, etc., all have unique challenges in this area. Some brands work with these marketplaces as if they are authorized retailers (e.g., Vendor Central or 1P), in which case they need to be handled like any other authorized retail partner. (Of course, you’re reading this article because marketplaces typically refuse to abide by MAP policies the way other retailers do.) Other brands work with these marketplaces independently as sellers (e.g., Seller Central or 3P), and any other sellers (e.g., unauthorized resellers/3P sellers) are not covered by a MAP program.
Update: To clarify, MAP programs only apply to a brand’s authorized sales channels where they can educate those channel partners on the MAP requirements and restrict the supply of inventory to them. Unauthorized sellers, by definition, are not part of the authorized sales channel, and have access to inventory without the brands’ control.
International: For brands selling internationally outside of the U.S., MAP has a different role. Most international territories do not recognize MAP programs as legal, and may impose strict sanctions against brands seeking to control pricing through an international MAP program. Nevertheless, these international partners should be informed of your MAP program so they can understand how the U.S. market can influence their domestic territories. Also, good international distributors will want to see the brand successful in the U.S. as well in order to keep distributing your products internationally. So, while there is no formal obligation on them related to MAP, it is good practice to keep them informed.
The Challenge of Enforcing MAP on Amazon and Walmart
Why Marketplace Enforcement is Uniquely Difficult
Amazon and Walmart present special challenges that I’ve helped hundreds of brands navigate.
Amazon explicitly states they do not enforce MAP policies, viewing them as manufacturer-retailer agreements. This means you’re entirely responsible for monitoring and enforcement. Walmart’s position is similar to Amazon. Both platforms use algorithmic repricing that can trigger violations without human intervention. Moreover, the sheer number of third-party sellers makes comprehensive monitoring challenging without automation, and sellers often violate MAP to win the featured placement, creating constant pressure for price reductions.
Best Practices for Amazon and Walmart MAP Enforcement
First Party/Vendor
If you are first-party (Vendor) to Amazon and Walmart, you need to treat them exactly like any other retailer. MAP programs must be uniform and consistently applied.
The practical reality here is that unless you have very strong control of pricing off of the marketplaces then you can expect automated repricing to trigger price violations often, with no apology from Amazon or Walmart. This is one of the primary reasons why more and more brands are limiting which products they put on a MAP program, and which they don’t. That way, for products supplied to Amazon or Walmart, you do not need to hold them to a MAP program.
Unfortunately, these marketplaces typically seek to sell the highest value products through a first-party or vendor relationship, leading to a great deal of loss for the brand if their best products are being eroded on price.
Alternatively, brands have been modifying their enforcement for violations. Historically, it was common for a MAP price violation on a single SKU to lead to a 3 or 6 months suspension of supplying inventory to that retailer for all of their SKUs. Now, I see more and more brands limiting the violation to only restrict supplying inventory of that single SKU that was violated. This minimizes the harm to the brand in the Amazon or Walmart channel while keeping the overall sales system health high.
Third Party/Seller
For brands selling 3P (or doing a hybrid) on Amazon and Walmart, you need to rethink your approach here. You don’t have any leverage with the marketplace whatsoever, and the MAP violations will be coming from unauthorized 3P sellers.
So, you need to make sure your MAP program and pricing off of the marketplaces is as strong as it can be, you need to remove as many of these 3P unauthorized sellers as possible.
To learn the best way to remove unauthorized 3P resellers, take a look at my complete guide (How to Remove Unauthorized Amazon Sellers: A Complete Step-by-Step Guide for Brand Owners). If you want an automated solution to do it for you, take a look at Sigil’s platform. It’s why we founded Sigil, after all.
Measuring MAP Program Success
Key Performance Indicators
Effective MAP programs should be measured by:
- Compliance Rate: Percentage of authorized sellers adhering to MAP pricing
- Violation Response Time: How quickly violations are detected and addressed
- Price Erosion Prevention: Maintenance of average selling prices across channels
- Retailer Relationship Health: Feedback from authorized partners on program effectiveness
- Revenue Recovery: Quantified impact on sales and profitability
Common Pitfalls to Avoid
Based on my legal experience, avoid these critical mistakes:
- Creating Bilateral Agreements: Never require retailer signatures on MAP policies, as this can create the risk of illegal price-fixing agreements
- Controlling Sale Prices: Focus only on advertised prices, never actual transaction prices
- Horizontal Coordination: Never coordinate MAP policies with competitors or facilitate retailer price discussions
- Inconsistent Enforcement: Selective enforcement can undermine legal protections and create discrimination claims
Avoid these operational mistakes as well:
- Using generic policy templates that don’t address your specific business needs
- Failing to communicate policy updates to all channel partners
- Inadequate monitoring leading to delayed violation detection
- Over-reliance on manual processes that can’t scale with business growth
I hope this helps! If you have any questions, feel free to DM me on Linkedin.