What Brands Look for in a 3PL for Amazon Sellers — and How to Position For It

Amazon volume is becoming a standard line item in fulfillment RFPs. Brands evaluating 3PLs increasingly want to know not just whether a provider can move freight and manage inventory, but whether they can operate inside Amazon's compliance requirements without creating chargebacks, listing flags, or receiving rejections on the brand's behalf. For 3PLs responding to these RFPs, the Amazon-readiness questions are often where proposals win or lose. A provider with strong general fulfillment capabilities can still lose an RFP if they can't speak clearly to FBA prep, labeling compliance, or Seller Fulfilled Prime readiness. Understanding what brands are actually evaluating — and how to structure a proposal that answers it directly — is the difference between a generic capabilities pitch and a response that demonstrates real fit. --- ## What "3PL for Amazon sellers" actually means to a brand evaluating providers When a brand searches for a 3PL for Amazon sellers, they're rarely looking for a general fulfillment capability with an Amazon integration bolted on. They're looking for a provider who understands the specific operational discipline Amazon requires — and who can demonstrate it with evidence, not just a claim on a capabilities page. The brands running this evaluation tend to fall into a few categories: brands launching FBA for the first time and looking for a 3PL that can handle prep correctly from day one, brands scaling existing Amazon volume who've outgrown their current provider's compliance capability, and brands evaluating Seller Fulfilled Prime who need a 3PL capable of meeting Amazon's Prime-level performance standards from their own facility. Each of these buyers is asking different specific questions, but they share a common evaluation lens: does this provider actually understand Amazon's operational requirements, or are they describing general fulfillment capability and assuming Amazon compliance will follow. --- ## The compliance capability question This is where most RFP responses either differentiate clearly or blur into the same generic language as every other provider in the pool. **FBA prep capability.** Brands want specifics: FNSKU labeling experience, poly bagging and suffocation warning compliance by category, case pack and carton labeling accuracy, and a track record of low rejection rates at Amazon receiving. A response that says "we support FBA prep" without quantifying it — rejection rate, labeling accuracy, prep turnaround time — reads as unverified. **The data point that matters most here is your inbound rejection rate.** If you can state it, state it. If you can't, that's worth fixing before your next RFP cycle, because brands increasingly expect this number and its absence reads as either a gap in tracking or a gap in performance. **Inventory state visibility.** Brands managing Amazon alongside other channels need a 3PL that can clearly distinguish FBA-bound inventory, inbound-in-transit inventory, and inventory available for other channels. Proposals that demonstrate system-level visibility into these states — not just a general claim of "real-time inventory tracking" — answer a question that sophisticated buyers are specifically probing for. **ASN and routing compliance for Vendor Central.** For brands operating or considering 1P relationships through Vendor Central, ASN accuracy and routing compliance are a distinct capability from standard FBA prep. If your organization has Vendor Central experience, name it specifically. Brands evaluating 1P readiness are filtering hard on this, and general 3PL language doesn't signal it. --- ## Seller Fulfilled Prime readiness SFP is a smaller but increasingly important segment of brand demand, and it's a capability that most 3PLs either clearly have or clearly don't — there's limited middle ground, because Amazon's performance requirements for the program are strict and unforgiving. Brands evaluating SFP-capable 3PLs are looking for specific signals: documented on-time delivery rate performance that would meet Amazon's Prime-level thresholds, two-day delivery network coverage across the regions the brand needs, and operational experience maintaining the kind of consistency Amazon's program requires without relying on buffer or grace periods. If your organization has supported brands through SFP qualification or maintained SFP performance for existing clients, this deserves dedicated space in your proposal — not a single bullet point alongside general delivery capabilities. It's a specific, defensible differentiator, and brands evaluating this capability are doing real diligence on it. If your organization doesn't currently support SFP, it's more useful to be direct about that in a conversation than to imply capability you can't back with data. Brands doing real RFP evaluation will ask for performance data, and a claim that doesn't hold up under that scrutiny costs more credibility than a clear "not currently, but here's our roadmap." --- ## The questions a strong RFP response anticipates Brands evaluating 3PLs for Amazon work are typically working through some version of the following questions, whether the RFP states them explicitly or not. Structuring a proposal that answers these directly — with data, not just capability statements — tends to perform better in evaluation. **What's your FBA inbound rejection rate, and what causes the rejections you do see?** A specific, honest answer with context (e.g., "primarily early-stage client onboarding before our labeling QC process catches issues") is more credible than a vague low-rejection claim with no detail. **How do you handle labeling and packaging spec changes when Amazon updates category requirements?** This question separates 3PLs with an active compliance monitoring process from those operating reactively. If you have a defined process for tracking Amazon policy changes and updating client-facing specs, name it. **Can you support both FBA and MCF inventory pools, and how do you keep them correctly separated operationally?** Multi-channel brands are increasingly asking this. A clear answer about system-level separation and operational workflow demonstrates depth beyond a basic Amazon integration. **What's your experience with Vendor Central compliance — ASN accuracy, routing requests, chargeback rates?** For brands with or considering 1P relationships, this is a differentiating capability most general 3PLs can't speak to with specificity. If you can, lead with it. **How do you handle peak season volume — Prime Day, BFCM, Q4 — without compliance slippage?** Brands have seen providers that perform well at normal volume and degrade under peak load. Speaking to your peak season staffing model, prep capacity scaling, and historical performance during these windows answers a real concern. --- ## Structuring the proposal to answer these directly The providers who win Amazon-focused RFPs tend to structure their response around evidence rather than capability claims. A few patterns that perform well: **Lead with data, not adjectives.** "Industry-leading Amazon fulfillment capability" tells a brand nothing they can evaluate. "98.7% FBA inbound acceptance rate across 40,000 units shipped in the trailing twelve months" gives them something to compare against other proposals and against their own current performance. **Name the specific Amazon programs you support.** FBA, MCF, SFP, Vendor Central — list what you actually do, with specificity, rather than a general statement about Amazon integration. Brands are often evaluating multiple fulfillment models simultaneously, and clarity about which ones you support (and at what scale) helps them place you correctly in their evaluation. **Address the failure modes directly.** Brands evaluating 3PLs for Amazon work have often been burned before — by a provider that didn't understand FBA prep requirements, or a labeling error that triggered a chargeback, or a receiving rejection that caused a stockout. A proposal that acknowledges these common failure points and speaks directly to how your operation prevents them reads as more credible than one that only describes capabilities in the abstract. **Give them something to verify.** References, case studies with real numbers, or a willingness to share performance data under NDA all signal confidence that a generic capabilities page doesn't. Brands doing real diligence will ask. Providers who anticipate the ask and have the answer ready move faster through evaluation. --- ## Why this matters beyond any single RFP Amazon-related fulfillment requirements are not a temporary trend in the RFP pipeline — they're becoming a standard evaluation category for a meaningful share of brands, regardless of whether Amazon is their primary channel. Brands launching on Amazon for the first time, brands consolidating multi-channel fulfillment, and brands evaluating 1P relationships are all generating RFP volume with explicit Amazon compliance requirements built in. 3PLs that can speak to this capability with real data — rejection rates, SFP performance, Vendor Central experience, peak season track record — are positioned to win a growing share of that volume. The ones still responding with general fulfillment language are competing on price and relationship alone, in a category where buyers are increasingly evaluating on operational specificity instead. Building the internal tracking to answer these questions with real numbers, before the RFP arrives, is the preparation that turns this into a competitive advantage rather than a scramble every time a brand asks.