You’ve spent years building your brand, perfecting your product, and winning over customers. Then you look at your Amazon listings and see a seller named "SuperDiscountLiquidators" offering your flagship item for 30% less than your own website. Your Buy Box percentage tanks, your 1P purchase orders dry up because Amazon is busy price matching a guy selling out of a garage, and your authorised retailers are calling you to complain. It’s a mess, but one with a well trodden path.

Many brands think that switching models will fix this. They believe that moving from 1P to 3P, or vice versa, is a magical cure for price erosion. It isn't. The truth is that a robust Amazon brand protection strategy is the foundation of everything else. If your distribution is a leaky bucket, it doesn't matter what colour you paint the bucket or who's holding the handle. You're still going to lose water.

Let’s be clear: moving from 1P to 3P doesn't fix a messy distribution network. If your products are leaking out from authorised distributors and showing up on the marketplace at a discount, your 3P sales will suffer because you can't gain control of the Buy Box. On the flip side, if you're on the 1P model, Amazon will simply price match the lowest "grey market" seller they can find - they’ll be willing to move to negative product for the most relevant ASINs, then come after you for retroactive funding for that price match. This erodes your brand value and your margins simultaneously.

The marketplace doesn't care about your "intent." It only cares about who has the inventory and who has the lowest price. To win, you have to take decisive control over your channel. However, how you do that depends heavily on where you are selling. You can't just copy-paste a US strategy into Europe without a visit from a very expensive lawyer.

In the United States, your primary weapon is a robust Minimum Advertised Price policy, better known as MAP policies. This is a unilateral statement where you tell resellers the minimum price they can show in their advertising.

It’s important to remember that MAP is not a contract. It’s a "take it or leave it" policy. If a seller breaks MAP, you stop selling to them. It’s generally legal under US antitrust law because you aren't forcing them to sell at a certain price; you're just choosing who you do business with based on how they advertise your brand. It works great until an anonymous seller pops up with 500 units of your top seller. That’s why MAP only works if you actually know who is selling your stock.

If you try to enforce MAP policies in the UK or EU, you're likely committing a "hardcore restriction" known as Resale Price Maintenance. European regulators are famously protective of price competition. Trying to fix a minimum price is a quick way to get a large fine and a very stern letter from a government agency.

Instead of controlling the price, European brands must control the distribution. This is where a Selective Distribution Agreement (SDA) comes in. Under EU law, you can limit your distribution to a "closed" network of authorised resellers who meet specific qualitative criteria.

These criteria might include:

Crucially, an SDA can prohibit authorised sellers from reselling to unauthorised third parties. This effectively stops the "leakage" to the grey market. If a seller doesn't meet your brand standards, you can legally prevent them from selling your products on marketplaces like Amazon.

Regardless of whether you're in Seattle or Stuttgart, you need to lean on Amazon's internal tools to keep the "Wild West" at bay. These aren't just suggestions; they are the baseline requirements for today’s brand owners.

This is your entry ticket. Without it, you have no voice and no tools. It allows you to protect your intellectual property and gives you greater control over your product listings. If you haven't done this yet, stop reading and go register now.

This serialisation service allows you to apply a unique, encrypted 2D barcode to every single unit you manufacture (for a small per unit fee). Amazon scans these codes in their fulfillment centers. If a unit doesn't have a valid code, it doesn't get shipped. Amazon Transparency is the ultimate leakage detector because you can trace exactly which distributor sold their stock to a rogue Amazon seller. It turns "I think they're leaking stock" into "I know exactly who did it."

For brands that have a high "Report a Violation" success rate, Amazon Project Zero gives you the power to remove counterfeit listings yourself. You don't have to wait for an investigator to look at your ticket. It’s a powerful tool, but it requires you to be diligent with your reporting first.

According to the official Amazon Brand Services resources, these tools are designed to work together to create a "clean" marketplace, but they only work if you are active in managing them.

As I regularly say, there is no silver bullet. Success comes from a combination of legal frameworks, clear communication with your partners, and using the tech tools Amazon provides. Switching between 1P and 3P won't save you if your "authorised" partners are the ones stabbing you in the back by liquidating stock to unauthorised resellers.

Take the time to audit your distribution agreements. If you're in the US, get your MAP policy in order. If you're in Europe, look into a Selective Distribution Agreement. Clean up the mess now so you can focus on growing your brand instead of playing "whack-a-mole" with resellers

Are you struggling with unauthorized sellers or price erosion? We’d love to hear how you’re tackling these issues in your specific market. Sharing experiences is the best way for all of us to stay ahead of the curve.