How to handle P2B dispute resolution for sellers: a step-by-step guide

TL;DRP2B dispute resolution for sellers is the formal process that the Platform-to-Business (P2B) Regulation requires Amazon DE – and every online marketplace operating in the EU – to provide when a seller wants to challenge a restriction, suspension, or delisting of its account or listings. The process runs in a defined sequence: an internal complaint through the platform's own system, then escalation to one or more external mediators from Amazon's pre-appointed list, and – depending on the version of the Amazon Business Solutions Agreement (BSA) that governs your account – arbitration or court proceedings if mediation does not resolve matters. Understanding that sequence, and where it tends to break down, is the difference between recovering a suspended account and losing months of revenue.

A suspension notice arrives in Seller Central. The listings are down. The account is restricted. The notice cites a policy ground – perhaps a product-safety flag, a related-account link, or a complaint under Amazon DE's terms – and the appeal path is not spelled out in plain language. For sellers operating under EU marketplace rules, that is precisely the moment where the Platform-to-Business Regulation and the Digital Services Act create procedural rights that most sellers never use, because most sellers do not know the rights exist.

This guide sets out the exact step sequence for P2B dispute resolution on Amazon DE, identifies the decision points where a seller's choices determine what options remain, and explains where the process typically goes wrong when sellers work through it without support. Whether you are at the first internal complaint or staring at a mediator's declination, the path forward depends on where you are in the sequence – and on what the platform's statement of reasons actually says.

What P2B dispute resolution for sellers actually is on Amazon DE

P2B dispute resolution is a structured, multi-stage process that the EU's Platform-to-Business (P2B) Regulation – formally Regulation (EU) 2019/1150 – mandates every online marketplace to offer sellers operating in the EU. Amazon DE, as one of the largest online marketplaces serving EU-based sellers, is bound by it. The regime requires Amazon to maintain an accessible internal complaint-handling system, to explain its restriction or suspension decisions through a statement of reasons, and to pre-identify external mediators to whom a seller may escalate a complaint that is unresolved internally.

In practical terms, P2B dispute resolution sits between two better-known mechanisms. It is distinct from the informal reinstatement process in Seller Central – that is, filing a Plan of Action (POA) through the Account Health dashboard – but it often runs in parallel with it. It is also distinct from arbitration under the Amazon BSA, which is a formal adversarial process. P2B mediation is, by design, a cooperative process in which a neutral mediator works with both sides to find a resolution.

What sellers frequently miss is the relationship between the Digital Services Act (DSA) and the P2B regime. Amazon, designated as a Very Large Online Platform (VLOP) under the DSA, must operate a statement-of-reasons system for every restriction and an internal complaint-handling system that sellers can invoke. The DSA obligations reinforce the P2B rights: a seller who receives an inadequate statement of reasons has a separate basis to press for clarification before it files a P2B complaint. Understanding how DSA seller rights interact with the P2B pathway is the first decision point.

In matters we handle, sellers on Amazon DE often conflate these two channels. They submit what amounts to a DSA internal-complaint using the Seller Central appeal form – and then, when they receive no substantive response, believe they have exhausted the P2B pathway. They have not. The internal complaint under P2B is formally distinct. It has its own tracking obligation on Amazon's side and its own escalation route to mediation. Getting the channel right from the first filing is essential.

For the full regulatory context – including how the P2B rules sit within the broader EU marketplace regulation regime – see our complete guide to EU marketplace regulation for sellers.

Before you file: gathering what you need

Starting the P2B dispute resolution process without the right documentation reduces a legitimate complaint to a bare assertion. The platform has an information advantage – it holds the account data, the complaint detail, and the policy basis for its decision. A seller who enters the process without organizing the equivalent picture is negotiating with nothing.

Before filing the internal complaint, a seller should assemble the following in a usable, dated format:

• The deactivation or restriction notice itself, including any reference numbers visible in Seller Central.
• The statement of reasons, if provided. Under the DSA and P2B rules, Amazon DE must provide this. If it was not provided, that omission is itself a ground for the complaint.
• All prior correspondence with Seller Support and the Account Health team relating to the issue, with dates and case-ID references.
• The product listing or account data that is the subject of the restriction – ASINs, categories, any prior warnings or performance notifications.
• Third-party evidence that speaks to the root cause: supplier invoices, authorization letters, test-report certificates, or product-safety documentation, depending on the nature of the complaint.
• A clear account of the business impact: inventory tied up in Amazon's fulfillment network, disbursement holds, lost sales during the suspension period.

Two points bear emphasis. First, the business-impact record matters at mediation, not just at any later arbitration stage. Mediators work within the P2B framework, which is a commercial-reasonableness regime. Concrete evidence that the restriction is causing disproportionate harm – for example, an account with a long trading history suspended for a marginal compliance issue – is directly relevant to the mediator's assessment.

Second, the statement of reasons from Amazon is not always adequate. It may be formulaic. It may cite a policy category without explaining which specific conduct triggered it. In those situations, a preliminary request – through Seller Central and, if necessary, through a formal DSA internal complaint – for a more detailed statement can be worth the time. A more specific statement of reasons often reveals the precise ground to challenge, and a challenge aimed at the right target stands a materially better chance of success.

Step one: the internal P2B complaint

The first formal step is to submit a complaint through Amazon's internal complaint-handling system, which is the mechanism the P2B Regulation requires Amazon to operate and maintain. This is not the same as sending a Seller Support message or submitting a Plan of Action through Account Health, though those channels may run in parallel.

The internal complaint should be structured around three elements: the specific restriction being challenged, the factual basis on which it is contested, and the remedy sought. Brevity is not necessarily a virtue here. A well-structured complaint does three things at once. It creates a formal record under the P2B framework. It puts Amazon on notice that the seller is invoking regulatory rights rather than simply asking for goodwill reconsideration. And it sets the baseline narrative that will carry forward if the matter escalates to mediation.

Common mistakes sellers make at this stage:

• Filing the complaint in a tone and format that mirrors a standard Seller Central appeal – informal, apologetic, focused on "corrective actions" rather than on the factual and legal basis for the challenge.
• Omitting the specific regulatory basis. The complaint should reference the P2B Regulation and, where applicable, the DSA's statement-of-reasons and internal-complaint provisions.
• Asking for a broad reinstatement without specifying the precise relief sought – for example, the reactivation of specific ASINs, the release of a disbursement hold, or the correction of an account metric.
• Filing before the documentation set described in the previous section is complete.

Amazon's P2B-compliant internal complaint-handling system must handle the complaint within a reasonable period and provide a reasoned response. If the response is inadequate, or if the platform simply fails to respond substantively, that is the trigger for escalation to mediation. Document everything. The record created at step one is the foundation of the mediation file.

Step two: escalating to P2B mediation – and how to choose a mediator

If the internal complaint does not resolve the dispute, P2B mediation is the next available step – and it is here that most sellers either abandon the process or proceed in a way that forecloses later options. The P2B Regulation requires Amazon to pre-identify two or more external mediators who are willing to mediate disputes with business users. Amazon publishes this list in its terms or in the Seller Central help documentation; it is worth confirming which mediators are currently listed before deciding how to proceed.

Choosing a mediator is not a formality. The mediators on Amazon's list are not Amazon agents, but they are not neutral in the sense that a court is neutral. They operate within the P2B framework, which is a commercial reasonableness standard. Their process, fee structure, and typical timelines differ. In matters we handle involving Amazon DE, we review the listed mediators against the specific issue at hand – a product-safety suspension may call for a different approach than an account restriction based on related-account flags.

The request to mediate must be submitted in writing, with the internal complaint record attached. It should specify the outcome sought and summarize why the internal complaint was not satisfactorily resolved. At this point the seller's documentation advantage – built at the earlier stages – becomes the working substance of the mediation.

Critically, mediation under the P2B Regulation is voluntary for Amazon. The platform is required to engage in good faith, but it is not required to agree to any particular outcome. A mediator can facilitate, but cannot impose a result. This is the key trade-off sellers face at this stage: mediation may achieve a faster, lower-cost resolution than arbitration, but it has no binding authority over Amazon's decision. If Amazon declines to shift its position, the seller's remaining options are the BSA dispute-resolution pathway – arbitration or litigation, depending on the applicable BSA terms – or, in appropriate cases, regulatory escalation.

For context on how DMA gatekeeper obligations may add further pressure on Amazon DE in high-stakes commercial disputes, see our analysis of DMA gatekeeper obligations and what they mean for marketplace sellers.

Step three: the mediation session itself – what to expect and where it goes wrong

P2B mediation on Amazon DE is typically a written or, occasionally, a video-conference-based process rather than a formal in-person hearing. A mediator conducts it by shuttling positions and proposals between the seller and the platform, often in rounds of written submissions. This distinguishes it from court or arbitration proceedings, and it has implications for how a seller should prepare.

The seller's opening submission to the mediator should be a complete, self-contained account of the dispute. Do not assume the mediator has access to Seller Central records. Do not assume Amazon's submission to the mediator will be detailed or specific. In our experience, platform responses at the mediation stage often reiterate the original policy ground without engaging with the specific challenge. A seller's submission that directly addresses that ground – with documentation, a factual counter-narrative, and a proportionality argument – can shift the dynamic.

Where mediation typically goes wrong:

• The seller treats the mediation as a second-chance Seller Central appeal rather than as a formal dispute process with a neutral third party. The framing, the evidence standard, and the relief sought should all shift accordingly.
• The seller accepts a partial resolution – for example, reinstatement of some listings but not the full account – without documenting the remaining open issues, which then become harder to press in a subsequent step.
• The seller underestimates the timeline. P2B mediation does not have a statutory deadline in the same way that a court filing does. The process can extend over several weeks or longer. Sellers who are waiting on inventory in Amazon's fulfillment network need to weigh the cost of that wait against the cost of a parallel formal filing.
• The seller reveals positions in the mediation that narrow its leverage in any subsequent arbitration. Mediation communications are generally treated as without-prejudice in most EU jurisdictions, but the exact treatment depends on the mediator's rules and the applicable procedural law. Confirm this before the process begins.

A micro-case illustrates the dynamic well. A German-registered seller on Amazon DE (winter 2025) came to us after its account was restricted under a product-safety ground that cited a complaint the seller had never seen and a product it had sold only briefly. The seller had already filed a standard Account Health appeal and received a boilerplate response. We reviewed the restriction notice, identified that no compliant statement of reasons had been issued, filed a DSA internal complaint for a more detailed statement, and then – with the fuller statement in hand – prepared a structured P2B internal complaint with product-safety documentation and a proportionality argument. The dispute advanced to mediation, and at that stage we were able to demonstrate that the underlying complaint had been filed erroneously and that the restriction was disproportionate to the period of sale. The account restrictions were lifted.

Step four: when mediation does not resolve the dispute – the decision on next steps

When P2B mediation reaches an impasse – or when Amazon declines to engage substantively – the seller faces a decision about how far to pursue the matter. This is the most consequential decision point in the P2B dispute resolution process, and it is one where the commercial reality of running a marketplace business has to be weighed alongside the procedural options.

The realistic options at this stage fall into three categories.

First, BSA-based dispute resolution. The Amazon Business Solutions Agreement governs the seller's commercial relationship with Amazon DE. Depending on the version of the BSA that applies to the account – and this varies, which is why we check the BSA terms first in every matter – the path may involve a Notice of Dispute, a pre-arbitration informal resolution period, and then either arbitration or litigation. The BSA dispute-resolution mechanism is a dynamic provision; its current terms must be confirmed before relying on them as the basis of a filing strategy.

Second, regulatory escalation. For sellers whose dispute involves a systematic or recurring failure by Amazon to comply with P2B or DSA obligations, a complaint to the competent national authority – in Germany, the Bundesnetzagentur is the authority with DSA enforcement responsibilities, while the Bundeskartellamt has a separate mandate on competitive-conduct grounds – is a realistic option. Regulatory action does not produce an account reinstatement directly or quickly, but in appropriate cases it applies external pressure and creates a public record of the compliance issue. The DMA gatekeeper obligations that apply to Amazon DE add a further layer of regulatory scrutiny for conduct that rises to the level of a competitive-conduct concern.

Third, litigation. EU courts, including German courts, have jurisdiction over claims by sellers against Amazon DE. The P2B Regulation and the DSA both provide a legal basis for claims beyond what the BSA alone would support. Litigation is the most resource-intensive option, and it is rarely the first resort. But for a high-value dispute where the platform has demonstrably failed to meet its statutory obligations, it is a genuine option – not a theoretical one.

The decision matrix, in practice, works like this: if the dispute is over a single ASIN or a temporary restriction and the business impact is contained, mediation is the proportionate response and a BSA Notice of Dispute is the natural fallback. If the dispute involves a full account deactivation with a significant disbursement hold, and mediation has produced no movement, BSA arbitration or a targeted regulatory filing may be warranted. If the restriction appears to be part of a pattern of conduct – repeated product-safety flags with no adequate statement of reasons – regulatory escalation and, potentially, litigation may be the appropriate tools.

For a detailed breakdown of Amazon's VLOP obligations and how they shape this analysis, see our page on Amazon as a Very Large Online Platform and what it means for marketplace sellers.

Where the P2B process goes wrong: the most common failure points

Having worked through the P2B dispute resolution process across a range of Amazon DE matters, we see a consistent set of failure points. They are worth naming directly, because each is avoidable.

Failure to preserve the internal complaint record. The P2B process is document-dependent. A seller who cannot show what was filed, when, and what response was received has no foundation for mediation and no credible basis for a regulatory complaint. Keep a complete, dated record of every communication.

Conflating the Account Health appeal with the P2B internal complaint. These are different channels with different regulatory implications. Using Seller Central's appeal form is not the same as invoking the P2B complaint-handling mechanism. If Amazon has not published a distinct P2B complaint channel in its seller terms or help documentation, that itself is a compliance issue worth raising.

Missing the proportionality argument. The P2B Regulation and the DSA both contain proportionality principles. A restriction that is technically grounded in a platform policy may still be disproportionate – particularly where the seller has a long account history, the violation was minor or based on a third-party error, and the commercial harm is severe. Failing to make this argument is leaving the strongest available ground unused.

Accepting a partial resolution without documenting what remains open. A partial resolution that leaves a disbursement hold in place or that reinstates only some listings is not a full resolution. Accept the partial resolution only with a clear written record of what is still disputed – and with a plan for the next step.

Waiting too long. The P2B process has no statute of limitations in the conventional sense, but delay has real costs. Evidence degrades. The business impact compounds. And a seller who waits months before invoking formal P2B rights may have already absorbed damage that the process could have mitigated. In lost-opportunity terms, the cost of not acting early is typically larger than the cost of the process itself.

The steps above describe the standard sequence. Your situation turns on the exact wording of the restriction notice, the account and listing history, and the specific ground Amazon has cited – which is what we review first. To get a read on where you are in the process, email info@tutamenlaw.com.

A note on the myth that EU sellers have no leverage

We regularly hear from sellers who believe that once Amazon DE has suspended or restricted their account, the decision is final and the options are limited to the standard Seller Central appeal. That belief is one of the most commercially damaging myths in EU marketplace selling.

The reality is structurally different. The P2B Regulation, the Digital Services Act, and the Digital Markets Act together create a suite of procedural rights that EU sellers hold against platforms, including Amazon. The internal complaint system is mandatory. The statement-of-reasons obligation is enforceable. The pre-identified mediators are a real escalation channel. And regulatory authorities in Germany and across the EU have demonstrated a willingness to act on systematic platform-conduct issues.

None of this means that every suspension can be reversed, or that every mediation produces a favorable outcome. What it means is that the procedural options are materially broader than most sellers realize, and that a seller who knows the sequence and uses it correctly is in a very different position from one who relies solely on Seller Central.

The objection we sometimes hear is that the process is too slow or too expensive for the size of the dispute. That is a genuine trade-off for lower-value matters. But for a seller whose account generates a significant share of its revenue, or whose disbursement hold ties up meaningful working capital, the calculation changes quickly. The cost of invoking P2B rights – particularly at the internal complaint and mediation stages, which are low-cost relative to litigation – is rarely as high as the cost of not using them.

If your first appeal or filing has already come back without a substantive resolution, a second review can identify the specific reason it failed and whether the P2B pathway has been properly invoked. Email info@tutamenlaw.com to discuss where the process stands.

Related areas

• EU Marketplace Regulation – full practice hub for EU and UK marketplace sellers facing suspension, delisting, and regulatory compliance issues
• Amazon Account Reinstatement – Plan of Action drafting, appeal strategy, and reactivation across Amazon marketplaces

Frequently asked questions on P2B dispute resolution for sellers

How long does resolving P2B dispute resolution for sellers usually take on Amazon DE?

The timeline depends on which stage the dispute reaches. An internal complaint that prompts a substantive response from Amazon may resolve the matter in a matter of weeks. Mediation typically takes longer – several weeks to a few months, depending on the mediator's process, the complexity of the underlying issue, and how quickly each side responds to the mediator's requests. Matters that proceed to a BSA-based dispute-resolution pathway or to regulatory escalation take materially longer. There is no single answer, and in matters we handle the timeline is usually a function of how clearly the original complaint was framed and how well the documentation supports the relief sought.

What are the main risks if I handle P2B dispute resolution for sellers alone?

The most significant risk is failing to invoke the correct channel from the start – filing a standard Seller Central appeal when a formal P2B internal complaint is what the situation requires. A second risk is accepting a partial resolution without documenting what remains open, which can make a subsequent filing harder to pursue. A third is revealing positions in mediation that narrow your leverage in arbitration, particularly if you have not confirmed the without-prejudice status of the mediation process under the mediator's rules. The procedural record you create – or fail to create – at each step is cumulative. Errors early in the process are difficult to correct later, and they can foreclose options that were otherwise available.

Do I need a lawyer for P2B dispute resolution for sellers?

You are not legally required to have a lawyer to file an internal complaint or to request P2B mediation. But the process is procedurally layered, and the quality of the record you create at each step has a direct effect on what is available to you at the next. In matters we handle, sellers who come to us after an unsuccessful attempt at the internal complaint stage often have to spend additional time correcting the narrative and rebuilding the documentation that should have been in the original filing. For a low-value dispute over a single ASIN, self-representation at the early stages may be proportionate. For a full account suspension with a disbursement hold, or for a dispute that may need to escalate to arbitration or regulatory action, attorney-led support pays for itself in the speed and quality of the process.

About Tutamen

Tutamen is an independent law firm for online marketplace sellers. We represent Amazon, Walmart, Etsy and eBay sellers in account deactivations, frozen-funds recovery, intellectual-property disputes, arbitration and Notices of Dispute, and US federal Schedule A defense, plus EU marketplace regulation. Our work is attorney-led and confidential, with fees quoted up front. We act for founders, brand owners and in-house teams who need a specialist for a marketplace dispute. Our EU regulatory practice covers P2B, DSA, DMA, and related obligations across Amazon DE, FR, IT, ES and other EU surfaces. To discuss your situation, email info@tutamenlaw.com.

This page was prepared by Claire Donnelly, arbitration and disputes analyst at Tutamen.

Page authored by Claire Donnelly, Arbitration & Disputes Analyst, Tutamen.

Disclaimer: This article is general information, not legal advice, and does not create an attorney-client relationship. Marketplace policies and the law change, and every account and case is different. For advice on your situation, contact Tutamen at info@tutamenlaw.com.