Platform and Marketplace Compliance · Memo

Marketplace Seller Agreements and Deplatforming Risk

Sellers depend on marketplaces and marketplaces reserve broad termination authority. I will walk through what the law actually constrains, what the contracts permit, and the procedural moves that preserve seller leverage.

The dependence of a small business on a marketplace is structural. A merchant selling on Amazon, eBay, Etsy, Walmart, Faire, Shopify, Apple App Store, Google Play, or another major platform may have most or all of its revenue running through that single channel. The marketplace, in its seller agreement, reserves broad discretion to suspend, restrict, or terminate the merchant's account. The asymmetry is enormous. A deplatforming event can be terminal for the merchant. The marketplace's exposure for a single termination is, on the face of the contract, near zero.

The legal reality is more nuanced. The contract's discretion is not unbounded. State and federal law constrain certain conduct. The marketplace's actual conduct, when reviewed against the contract's terms, often reveals breach-of-contract or related theories. Counsel for a deplatformed merchant has more leverage than the seller agreement suggests, but the leverage requires careful work to activate.

The contractual framework

Standard marketplace seller agreements reserve to the platform the right to suspend, restrict, or terminate access for any reason or for stated reasons including policy violations, customer complaints, fraud indicators, intellectual property complaints, regulatory issues, or risk-related concerns. The agreements typically specify that the platform's decisions are final, that the merchant has no right to appeal beyond defined internal procedures, and that the platform is not liable for damages arising from termination.

The implied covenant of good faith and fair dealing constrains how the discretion may be exercised. Carma Developers (Cal.) Inc. v. Marathon Development California Inc., 2 Cal. 4th 342 (1992), is the standard California citation, but the principle is broadly recognized. Where the platform has discretion under the contract, the discretion must be exercised reasonably and in good faith. Termination for an undisclosed reason, for a reason that contradicts prior platform communications, or for a reason that violates the platform's own published policies can support a breach-of-implied-covenant claim even where the bare contract provision permits termination.

The UCL stacking opportunity

California's Unfair Competition Law, Bus. and Prof. Code section 17200, reaches conduct that is unlawful, unfair, or fraudulent. A merchant whose deplatforming reflects a pattern of unfair or unlawful conduct by the platform can pursue a UCL claim. The remedies include restitution and injunctive relief. For an individual merchant, the UCL claim is at its strongest when combined with public-injunctive relief under McGill v. Citibank N.A., 2 Cal. 5th 945 (2017), which permits a California plaintiff to seek injunctive relief that benefits the public notwithstanding an arbitration clause's class-action waiver.

The public-injunctive theory is the most useful when the merchant's deplatforming reflects a systemic platform practice rather than an isolated decision. A merchant who can document a pattern of similar terminations of similarly situated merchants has the basis for a public-injunctive claim that can survive the arbitration clause's reach.

The specific-state statutes

Several states have enacted statutes that specifically address platform conduct in commercial contexts. California's section 17200 is one. Colorado's Senate Bill 26-176 and similar state legislation reach platform conduct in some sectors. New York's General Business Law sections 349 and 350 reach unfair-trade-practice conduct, including platform-merchant disputes. Counsel should check the specific state law for the merchant's residence and operations.

The app store context has particular regulatory developments. Epic Games v. Apple (the 2021 trial court decision and the 2023 Ninth Circuit affirmance in relevant part) addressed anti-steering and the limits of platform conduct. The Apple iPhone Antitrust Litigation and related matters continue. The DOJ's 2024 action against Apple and the EU's Digital Markets Act enforcement against gatekeepers are relevant context. Sellers on app store platforms have more legal architecture available than sellers on general e-commerce platforms.

The intellectual-property complaint angle

Marketplace deplatforming is frequently triggered by intellectual-property complaints, particularly DMCA takedown notices under 17 U.S.C. section 512 for copyright and the marketplace-specific procedures for trademark and patent complaints. If the underlying complaint is meritless, the merchant has counter-notification rights under section 512(g) (for copyright) and may have claims for tortious interference, defamation, or unfair competition against the complainant.

For trademark complaints, the marketplace's procedures vary. Amazon's Brand Registry, eBay's VeRO program, and similar mechanisms can be triggered by complaints that, if litigated, would not succeed on the merits. The merchant's response is two-track: appeal within the marketplace's procedures and pursue the underlying complainant outside the marketplace.

The procedural moves that preserve leverage

1. Document the deplatforming. Preserve every communication from the platform, every policy that the platform invoked, every prior interaction that bears on the decision. The documentary record is the predicate for any subsequent legal claim.
2. Calendar the appeal deadlines. Most platform procedures impose deadlines for appeal. Missing the deadline may forfeit the contractual remedy. Calendar each deadline and respond within it.
3. Submit a thorough internal appeal. The internal appeal is the platform's last chance to reverse the decision without legal pressure. The submission should be thorough, with documentation of the merchant's compliance and the platform's communications. Many deplatforming events are reversed at this stage.
4. Identify the legal theories before drafting any external letter. Breach of contract, breach of implied covenant, UCL violation, tortious interference, defamation, declaratory relief. The theories drive what the demand letter should look like.
5. Send the demand letter through executive correspondence. A demand letter sent through the merchant's general support contact is routed back to the team that made the original decision. A demand letter sent to the platform's general counsel, chief legal officer, or chief compliance officer at the corporate address routes to a different team.
6. Consider the regulatory complaint. The relevant state regulators (Attorney General's office, consumer protection division) accept complaints about platform practices. The complaint is not a fast remedy but creates a parallel track.
7. Preserve litigation as the last step, not the first. Most matters resolve before litigation. Litigation is expensive, slow, and changes the relationship permanently. Preserve it as a credible option, not the default.

The compliance posture in advance

For counsel advising a merchant who has not yet been deplatformed, the prophylactic moves:

• Read the marketplace's seller agreement carefully. Identify the specific termination grounds, the appeal mechanism, the dispute resolution procedure, and the platform's choice of law.
• Document compliance with each policy that has been a frequent termination trigger (product accuracy, response time, customer satisfaction metrics, intellectual property compliance, prohibited-content rules).
• Diversify revenue across platforms where possible. A merchant generating one hundred percent of revenue from a single platform has no leverage at the deplatforming moment. A merchant with thirty percent on each of three platforms can survive a deplatforming event while the appeal runs.
• Maintain a direct customer relationship outside the platform. Email list, newsletter, or other direct communication channels. The platform owns the platform's customer relationships; the merchant should own the merchant's.
• Build relationships with platform account managers if available. Direct human contacts can sometimes resolve issues that the automated systems would not.

What I would not assume

The case law on platform deplatforming has not coalesced into a coherent doctrine. Trial courts have reached inconsistent results. The contract's reservation language is generally respected. The implied covenant claim has gained traction in some matters but is not a reliable winner. Outcomes depend on the merchant's specific facts, the platform's specific conduct, and the procedural posture. A merchant whose deplatforming was justified on the platform's stated grounds has limited recourse. A merchant whose deplatforming reflects opaque or inconsistent platform decision-making has meaningful arguments. The first-stage analysis is honest assessment of which case the merchant is in.

Sergei Tokmakov, Esq., CA Bar #279869. This memo is attorney commentary on legal questions and is not legal advice. Reading it does not create an attorney-client relationship. Past matter outcomes depend on facts and the responding party; nothing here is a prediction of result.