How to handle unfair ranking complaint under EU rules on Amazon IT

TL;DRAn unfair ranking complaint under EU rules on Amazon IT is a formal challenge to the way Amazon ranks, demotes, or removes a seller's listings from search results or category pages – using rights created by the Platform-to-Business (P2B) Regulation and, for larger impacts, the Digital Services Act (DSA). The complaint is not a simple appeal button. It follows a defined procedural sequence: an internal complaint through Amazon's own system, escalation to a P2B mediator if that fails, and – in the most serious cases – regulatory or judicial action. Each stage has its own requirements and its own risks if handled carelessly.

A seller on Amazon Italy wakes up to a ranking collapse. Organic positions that drove most of the store's revenue have disappeared overnight. The product detail pages are still live, but traffic has fallen so far that FBA inventory is effectively stranded. The commercial damage is immediate – disbursement cycles keep running, storage fees keep accruing, and the root cause is nowhere in Seller Central. That is the moment this guide is written for.

This guide walks through the full step sequence: diagnosing what kind of ranking event has occurred, understanding which EU instrument applies, building the complaint file, submitting through the right channel, escalating if the first step fails, and deciding when specialist help changes the outcome. Each step names the real decision points and the mistakes that cut options short.

What is an unfair ranking complaint under EU rules, and when does it apply on Amazon IT?

An unfair ranking complaint under EU rules is a seller's formal objection to a platform's decision to alter, restrict, or systematically disadvantage the visibility of the seller's products, grounded in the transparency and non-discrimination obligations that EU law now imposes on large online platforms. The two principal instruments on Amazon IT are the P2B Regulation – which applies to all business sellers using the platform – and the DSA, under which Amazon operates as a Very Large Online Platform (VLOP).

The P2B Regulation requires Amazon to explain the main parameters of its ranking algorithm in its general terms and conditions, and to give sellers a statement of reasons for any individual restriction or demotion that affects their access to the platform's services. That obligation is the foundation of a ranking complaint. If Amazon's ranking decision changes your position in a way that amounts to a restriction of your access to the service – whether through a direct policy action or through undisclosed algorithmic weighting – the P2B Regulation gives you the right to a written explanation and an internal complaint path.

The DSA adds a separate layer. As a VLOP, Amazon must operate an internal complaint-handling system that processes complaints about its decisions – including algorithmic decisions affecting visibility – within a reasonable time and with a genuine substantive review. Sellers can use the DSA internal complaint mechanism alongside the P2B path, and the two are not mutually exclusive.

A ranking complaint under these rules is not the same as disputing a performance warning in Account Health. It is not a Plan of Action submission, and it does not follow the standard Seller Central appeal flow. It is a structured legal complaint about a platform decision, submitted under defined procedures that the platform is legally obligated to process. In the matters we handle on Amazon IT, sellers frequently confuse the two paths – submitting a standard appeal and then wondering why the EU-rights argument is getting no traction. The path matters from the first step.

The DSA seller rights that apply here also connect to the broader regulatory picture. For a detailed treatment of all the EU instruments that affect marketplace sellers, see our complete guide to EU marketplace regulation for sellers.

How do you diagnose the type of ranking event before filing anything?

Before submitting any complaint, you need to determine whether the ranking change is the result of a platform decision – something Amazon did to your account or listings – or an algorithm-driven outcome that you could influence through legitimate optimization. Filing a formal complaint about an organic ranking fluctuation achieves nothing and may consume goodwill at the internal-complaint stage that you will need later.

Check Seller Central's Account Health and Performance Notifications for any notice that arrived around the time of the ranking collapse. A direct policy enforcement action will almost always generate a notification. Look specifically for language about search suppression, ineligibility for featured placement, or a restriction on your listing's visibility. Those are the markers of a platform decision that is subject to a statement-of-reasons obligation under P2B.

If no notification is present, check whether the ranking change is listing-specific or account-wide. An account-wide drop with no notification can indicate an algorithmic action tied to account-level signals – seller metrics, returns data, or a linked-account flag. That scenario requires a different analysis before you decide which EU lever to pull.

Also check the timing against any intellectual-property complaint, counterfeit flag, or product-safety notice affecting the relevant ASINs. A ranking suppression triggered by an IP or safety complaint is a compound problem: the ranking relief depends on resolving the underlying complaint first, and the P2B complaint machinery alone will not unwind an IP-driven action.

We regularly see sellers in this situation who have already spent weeks in the standard appeal loop before anyone maps the actual root cause. That delay matters, because the credibility and specificity of the formal EU complaint depends on how well the statement of reasons has been read and how precisely the counter-argument is framed.

What is the step-by-step procedural path for filing the complaint?

The realistic path runs in three phases: the internal complaint, the mediator track, and – if both fail – escalation to a regulator or court. Most matters are resolved or significantly clarified at phase one, but the way you execute phase one determines how much leverage you have in phases two and three.

Phase 1 – Internal complaint to Amazon

Under the P2B Regulation, Amazon is required to maintain an internal complaint-handling system that is free, easily accessible, and capable of processing complaints about ranking decisions. Under the DSA, Amazon as a VLOP is required to provide a statement of reasons for any algorithmic decision that restricts a seller's visibility, and to operate a complaints process that handles those challenges substantively.

The formal complaint submission should be in writing and should state clearly: (1) the specific listings or account-level restriction affected; (2) the approximate date on which the ranking change became apparent; (3) the EU legal basis for the complaint – the P2B Regulation, the DSA, or both; (4) the specific transparency or non-discrimination obligation you allege has been breached; and (5) the remedy you are requesting, whether a full statement of reasons, restoration of ranking, or both.

Do not submit this as a standard Seller Support ticket. Use Amazon's designated business-complaint channel. The P2B Regulation requires that channel to be accessible, and using it correctly creates the paper trail you will need if the matter escalates. Keep copies of every communication, including timestamps.

Amazon is required to respond to internal complaints within a reasonable time and to give the complaint genuine consideration. In practice, the initial response may be a templated acknowledgment. If the substantive reply does not address the EU-law basis of your complaint, that failure is itself relevant to the next phase.

Phase 2 – P2B mediation

If the internal complaint does not produce a satisfactory result, the P2B Regulation gives sellers access to out-of-court dispute resolution through mediators that the platform must identify in its terms and conditions. Amazon is required to name P2B-compliant mediators and to engage in mediation in good faith.

Mediation under P2B is not arbitration. It is a structured facilitated process. The mediator cannot impose a decision, but a well-prepared mediation file – incorporating the rejected internal complaint, the evidence of the ranking impact, and the legal analysis of the breach – creates significant pressure on the platform to engage seriously. In the matters we handle, this stage produces meaningful responses that the internal complaint stage did not.

The decision to proceed to mediation turns on a trade-off: it takes time and requires a well-organized file, but it costs far less than regulatory proceedings and may resolve the matter in weeks rather than months. The key preparation step is assembling the evidence of the ranking impact in a format that the mediator and the platform's legal team can evaluate objectively – ranking-position data, traffic data, revenue impact, and the specific policy or algorithmic action that caused it.

Phase 3 – Regulatory and judicial escalation

If mediation fails or is refused, sellers have two parallel escalation routes. The first is a complaint to the relevant national authority responsible for enforcing the P2B Regulation in Italy, which has the power to investigate systematic non-compliance and impose corrective measures. The second is judicial enforcement – bringing a claim before an Italian court for breach of the P2B Regulation's obligations.

The DSA adds a third route: a complaint to the relevant Digital Services Coordinator (DSC) regarding Amazon's failure to comply with its VLOP obligations under the DSA, including the internal complaint-handling and statement-of-reasons requirements. These routes are not mutually exclusive with the P2B path.

For sellers whose ranking suppression has a competition dimension – for example, where Amazon appears to be self-preferencing its own products at the expense of competing third-party sellers – there is also the Digital Markets Act (DMA) gatekeeper framework. For a detailed examination of that route, see our analysis of self-preferencing complaints under the DMA and what they mean for marketplace sellers.

Before the first paragraph of a formal complaint to any authority is drafted, compare the realistic outcome and the time required for each route. A P2B mediator decision that restores ranking in six to eight weeks may be more valuable commercially than a regulatory investigation that produces results over a significantly longer horizon.

A mid-sized Italian electronics seller (spring 2026) came to us after its main product category rankings had collapsed and a two-month standard appeal cycle had produced nothing actionable. We mapped the account timeline, identified a specific algorithmic action linked to an Account Health metric that had been triggered by disputed return claims, and filed a formal P2B complaint with a DSA-based statement-of-reasons demand. The platform's substantive response to that complaint gave us the documentation needed to enter mediation with a precise factual record. The ranking position was materially restored within the mediation window.

What documents and evidence do you need before filing?

A formal EU ranking complaint is only as strong as the evidence behind it. Assembling the file correctly before the first submission is the single step most sellers skip – and the one that most often determines whether the complaint is taken seriously or dismissed as general dissatisfaction.

The core file should contain the following elements:

• A chronological account timeline showing the date the ranking change became apparent, the scale of the drop, and any Seller Central notifications received around the same time.
• Ranking-position data for the affected ASINs, covering a period before and after the event. Third-party ranking trackers can provide this in a format that is easy to read in a complaint file.
• Traffic and session data from Seller Central's Business Reports, showing the correlation between the ranking change and the revenue impact.
• All Account Health notifications and performance warnings issued in the 90 days preceding the event.
• Copies of any prior Seller Support correspondence about the issue, including ticket numbers and dates.
• A precise identification of the P2B and/or DSA obligation you allege was breached, supported by the relevant passage in Amazon's seller terms or ranking-parameters disclosure.
• The specific remedy requested – a written statement of reasons, restoration of ranking, or both.

The Amazon Business Solutions Agreement (BSA) and the platform's public ranking-parameters disclosure are the documentary foundation for the legal argument. The ranking-parameters disclosure is required by the P2B Regulation to appear in Amazon's terms; read it carefully before the complaint is drafted, because the gap between what is disclosed and what actually happened to your listings is the core of the unfair ranking argument.

One practical note: the complaint should be written in a way that is understandable to a non-technical reviewer at Amazon's internal complaints team and, later, to a mediator or a regulatory official who may not be familiar with FBA operational detail. The legal argument and the commercial impact need to be stated clearly and separately.

Where does this process go wrong – and what cuts your options short?

The most common failure mode is submitting the P2B complaint as a variation of the standard Seller Central appeal. It reads like a Plan of Action. It describes the seller's good intentions and service metrics. It does not state the EU legal basis, does not identify the specific obligation breached, and does not request a specific remedy. Amazon's internal complaint system responds with the same templated language as the appeals queue, and the seller concludes that the EU route has no practical effect. It does – but only if the complaint is framed correctly from the start.

The second failure mode is delay. There is no hard statutory deadline for filing a P2B complaint, but commercial urgency is real. Every week the ranking suppression persists, the inventory position deteriorates, the revenue impact compounds, and the account's performance metrics may themselves start to decline in a way that creates secondary Account Health problems. Moving quickly to the internal complaint stage – even before the full evidence file is assembled – preserves the timeline and establishes the complaint date.

The third failure mode is conflating the EU complaint with parallel disputes. If the ranking suppression was triggered by an IP complaint or a product-safety flag, submitting only the EU ranking complaint will not resolve the underlying action. The two tracks need to run in parallel, and the strategy for each needs to be coordinated.

The fourth failure mode is accepting the first rejection of the internal complaint as final. Under both the P2B Regulation and the DSA, a rejection that does not substantively address the legal basis of the complaint is itself a failure of the platform's obligations. That failure is an argument in the mediation file, not a door closing.

For sellers whose situation also involves a marketplace suspension rather than a ranking-only action, the German Amazon framework offers a useful comparison of how platform obligations and seller rights interact across EU jurisdictions. See our step-by-step guide on handling a German marketplace suspension on Amazon DE.

A fashion accessories distributor on Amazon IT (winter 2025) handled the first two stages alone. The initial internal complaint was filed as a standard performance appeal, and the P2B legal argument was buried in the third paragraph. Amazon's response did not engage with it. By the time the seller reached us, the rejection had been treated as final for six weeks. We rebuilt the complaint file, resubmitted with the EU basis leading the document, and the platform's substantive response at the mediation stage provided the statement of reasons that had been withheld from the start.

What are the seller's key decision points and trade-offs?

Every step in this process involves a choice between speed and completeness, between the cost of professional support and the cost of getting it wrong alone, and between the routes that are most likely to restore ranking quickly and those that build the strongest long-term record. Here is how those decisions map.

If the ranking impact is significant and ongoing – meaning it is affecting a material share of the account's revenue – the priority is getting a substantive response from Amazon as quickly as possible. That means filing the internal complaint quickly, with enough legal specificity to require a substantive reply, rather than waiting to build a perfect file. Speed to the internal complaint stage buys leverage; delay compounds the commercial damage.

If the internal complaint produces a substantive response – even a negative one – read it carefully before deciding whether to proceed to mediation. A detailed statement of reasons, even if adverse, tells you exactly what argument Amazon is relying on and where the counter-argument needs to focus. A non-substantive response tells you the internal process has not been conducted in good faith, which is a stronger mediation argument.

The decision to proceed to mediation versus regulatory escalation turns primarily on timeline. Mediation is faster, cheaper, and more directly targeted at the commercial outcome. Regulatory proceedings produce binding enforcement but operate on a longer horizon. In most commercial situations, mediation first – with regulatory escalation as a documented alternative – is the right sequence.

The decision to engage specialist help turns on complexity. If the ranking complaint is straightforward – a clear platform decision, a well-documented impact, no compound IP or safety issues – many sellers can navigate phase one alone with careful preparation. If the complaint involves a compound trigger, a dispute about the ranking-parameters disclosure itself, or a DMA self-preferencing dimension, the legal analysis at the filing stage is the difference between a complaint that gets substantive engagement and one that is processed as a routine appeal.

If a first attempt has already been filed and rejected, the question is whether anything is still open. In many matters, a rejected internal complaint is not the end of the road. It is the beginning of the mediation track, and the rejection itself is part of the evidence file. Contact us to review what is still available: email info@tutamenlaw.com.

Related areas

• EU Marketplace Regulation – the full practice covering DSA, DMA, P2B, GPSR and EPR compliance and enforcement for Amazon and multi-platform EU sellers.
• EU marketplace regulation complete guide – detailed treatment of every EU instrument affecting online marketplace business sellers.

Frequently asked questions

How long does resolving unfair ranking complaint under EU rules usually take on Amazon IT?

The timeline depends on which phase the complaint reaches. An internal complaint under the P2B Regulation and DSA can produce a substantive response within a few weeks if the platform engages properly, though in practice first responses are often templated and a follow-up or escalation is needed. P2B mediation typically runs over several weeks to a few months. Regulatory proceedings operate on a longer horizon that is difficult to predict at the outset. The practical answer is that the fastest path to a commercial result – ranking restoration – runs through a well-prepared internal complaint and, if needed, mediation. Sellers who frame the complaint correctly from the first submission consistently reach the substantive-response stage faster than those who iterate through standard appeals first.

What are the main risks if I handle unfair ranking complaint under eu rules alone?

The primary risk is that the complaint is framed as a standard performance appeal rather than a structured EU legal complaint, which means it gets routed through the same queue as a Plan of Action submission and receives the same templated response. The second risk is treating that response as final and missing the mediation and regulatory escalation options that remain open. The third risk is delay – a ranking suppression that persists for months because the formal complaint was never filed creates compounding commercial damage that may be difficult to recover even after ranking is restored. Sellers who handle the process alone without the P2B and DSA framing effectively waive the procedural leverage those instruments provide.

Do I need a lawyer for unfair ranking complaint under eu rules?

Not every case requires legal representation, but the value of specialist input depends on the complexity of the situation. A straightforward ranking action with a clear paper trail and no compound IP or safety issues can be handled by a well-prepared seller using the process described in this guide. Where legal help materially changes the outcome is in cases involving a compound trigger, a disputed ranking-parameters disclosure, a DMA self-preferencing dimension, or a situation where a first attempt has already been rejected. In those scenarios, the legal framing at the complaint stage – identifying the specific obligation breached and the precise remedy – is the difference between a document that requires substantive engagement and one that is processed and closed. Our fees for EU complaint and mediation work are fixed and quoted up front after a short review of the file.

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 practice covers P2B complaints, DSA internal complaint and escalation, DMA gatekeeper matters, GPSR compliance, and marketplace suspension proceedings across EU jurisdictions, conducted in English. To discuss your situation, email info@tutamenlaw.com.

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.