Amazon integration

Amazon fulfillment for sellers who outgrew FBA — or want a backup plan

FBA prep, FBM, and SFP-ready fulfillment from one inventory pool. Transparent pricing and expedited two-day options where available.

Amazon Seller Central integratedTwo-day delivery via expedited where availableFBA prep since 2016

Yes, Simpl ships Amazon orders.

Simpl Fulfillment is a 3PL for Amazon sellers, handling both Amazon fulfillment modes from one inventory pool: FBA prep (receive, FNSKU-label, inbound to Amazon) and FBM (we ship direct from your Simpl pool in your branded packaging, with SFP-ready performance positioning for when Amazon reopens Prime enrollment). The connection runs through your Seller Central account — no developer required. FBM and SFP labels print on Amazon-approved carriers so tracking is carrier-validated end to end. Every Simpl client gets a dedicated account manager reachable by email with same-day responses. Pricing starts at $7/order; we ship for brands doing 50 to 5,000+ orders/month.

How it works

How the Amazon integration works

STEP 01

Connect Seller Central

Connect Simpl from your Seller Central account. No developer required. Labels on FBM and SFP orders are generated through Amazon-approved carriers so tracking is carrier-validated end to end.

STEP 02

Choose your mode (or modes)

FBA prep sends inventory to Simpl, where we receive, FNSKU-label, polybag, bundle, and create the inbound shipment to Amazon. FBM routes orders to Simpl for direct ship in your packaging. SFP-ready uses Simpl's fast US ground coverage and carrier-validated tracking so you qualify the moment Amazon reopens Prime enrollment.

STEP 03

Pick, pack, and ship to spec

FBM and SFP orders pick inside a handling window tuned to your late-shipment-rate target. Labels are carrier-validated through Amazon-approved carriers so tracking flows back to Seller Central clean. FBA inbounds carry FNSKU, polybag, and bubble-wrap prep per current Amazon spec.

STEP 04

Confirm back to Seller Central

Tracking, dispatch confirmation, and shipment status flow back to Seller Central with carrier-validated tracking numbers. Carrier-validated tracking protects valid-tracking-rate; on-time dispatch protects late-shipment-rate; the result is healthy seller metrics across the board.

What syncs

What syncs between Amazon and Simpl

Every order, inventory level, and return — with the direction and mechanism for each data flow.

DirectionWhat syncsMechanismNotes
inFBM ordersSimpl reads from your Seller Central storeFull line items, ship-to address, and Prime-eligibility flag where applicable.
inOrder updates and cancellationsSimpl reads from your Seller Central storePre-pick cancellations and address edits propagate to the warehouse.
inSettlement and shipment reportsSimpl reads from your Seller Central storeUsed to reconcile FBM tracking validation rate against Amazon's records.
outFBA inbound shipmentsSimpl writes back to your Seller Central storeCarton manifest, FNSKU mapping, and prep status created from Simpl when inventory is ready to send to Amazon.
outTracking and dispatch confirmationSimpl writes back to your Seller Central storeCarrier-validated tracking from Amazon-approved carriers pushed inside the handling window so valid-tracking-rate stays healthy.
outInventory levels (FBM)Simpl writes back to your Seller Central storeOptional — keeps your FBM SKU availability synced with on-hand at Simpl.
bothReturns (FBM)Simpl syncs with your Seller Central storeFBM returns receive at Simpl, get graded, and route back to sellable or to disposition. FBA returns continue to flow through Amazon.
The decision sellers face

Two ways to fulfill on Amazon

FBA isn't the only option, and for most sellers above a certain volume it isn't even the cheapest. Depending on your SKU profile, IPI score, restock limits, and Prime eligibility goals, Simpl supports both Amazon fulfillment modes from one inventory pool and one Seller Central connection — FBA prep when you're inbounding to Amazon, FBM (with SFP-ready performance) for orders you ship direct.

Mode 1

FBA Prep

Who it's for: Sellers staying on FBA but needing prep, kitting, or overflow capacity when Amazon caps your inbound. Common when IPI dips, when restock limits tighten ahead of Q4, or when SKUs need polybagging, bundling, or expiration-date labeling before they can hit an Amazon FC.

Receive your inventory, FNSKU-label, polybag and bubble-wrap to current Amazon spec, bundle or kit, and create the FBA inbound shipment on your behalf. We can cross-dock straight through or hold inventory at Simpl based on your IPI position and Amazon's current restock limits for your account.

FBA prep services
Mode 2

FBM (Fulfilled by Merchant)

Who it's for: Sellers protecting Amazon seller metrics (late shipment rate, order defect rate, valid tracking rate), running multi-channel inventory across Amazon plus DTC and other marketplaces, or absorbing overflow when FBA restock limits leave them stranded.

Orders route from Seller Central to Simpl. We ship direct in your branded packaging, print carrier-validated labels through Amazon-approved carriers where Prime-eligible, and push tracking back inside the handling window. FBM returns get received, graded, and restocked to sellable when condition allows.

Compare Simpl to FBA
Why Simpl

Why Amazon sellers choose Simpl

3 MODES, 1 POOL

Three Amazon modes under one roof

FBA prep, FBM, and SFP-ready fulfillment all run from the same inventory pool, on the same SP-API connection, with one ops team and one invoice. Most 3PLs force you to pick one mode; Simpl moves units between them as your strategy changes.

OVERFLOW READY

Backup plan for FBA capacity and restock limits

When Amazon throttles your inbound or your IPI score caps restock quantities, FBM via Simpl absorbs the overflow without forcing you to sit on stock or lose the Buy Box. You stay in stock on Amazon while you wait for FBA capacity to reopen.

YOUR BOX, NOT AMAZON'S

Multi-channel inventory pool, no branded MCF boxes

MCF ships your Shopify and TikTok Shop orders in Amazon-branded boxes by default. Simpl ships every channel in your packaging, with inserts and custom kitting included, so brand experience stays consistent off Amazon.

METRICS-AWARE

SLAs tied to Amazon seller-metric thresholds

Late shipment rate, order defect rate, and valid tracking rate are the three numbers that decide whether your account stays healthy. Simpl's handling-window SLAs, carrier-validated label workflow through Amazon-approved carriers, and FBM returns process are written to keep all three inside Amazon's bars.

Pricing built around your real SKU mix, not FBA's fee schedule

Simpl quotes against your actual receive volume, storage footprint, pick and pack components, and outbound carrier rates. Storage is flat by warehouse storage type (bin, shelf, or pallet) with no Q4 premium, unlike FBA's October-through-December peak rate. FBM and SFP outbound use Amazon-approved carrier rates where Prime-eligible; FBA prep is priced per unit by component count.

FAQ

Amazon fulfillment FAQ

Does Simpl integrate with Amazon Seller Central?
Yes. Simpl connects from your Seller Central account in a few clicks — no developer required. We ship FBM orders, create FBA inbounds we run on your behalf, and reconcile reports that keep your account metrics clean.
Can Simpl handle FBA prep and DTC fulfillment from the same warehouse?
Yes — that's the core reason multi-channel Amazon sellers move to Simpl. One inventory pool covers FBA prep inbounds, FBM orders, and your Shopify, TikTok Shop, or eBay orders. Full details on the prep side live on the /amazon-fba-prep page; this integration page is the strategic view across all three modes.
What happens when I hit FBA capacity or restock limits?
FBM via Simpl absorbs the overflow. When Amazon caps your inbound for IPI or capacity reasons, we activate FBM routing for your Seller Central account so orders ship direct from Simpl in your packaging while you wait for restock limits to reopen. You stay in stock on Amazon, keep the Buy Box on more ASINs, and avoid sitting on inventory you can't send to an Amazon FC.
Is Simpl SFP-eligible?
Amazon's Seller Fulfilled Prime enrollment has been closed or waitlisted for new sellers. Simpl operates to the performance bars Amazon publishes for SFP: two-day ground coverage to most US ZIPs, carrier-validated tracking through Amazon-approved carriers, and an on-time SLA. The position is SFP-ready: when Amazon reopens enrollment, your account meets the operational thresholds on day one.
Does Simpl offer Amazon-compliant prep (FNSKU, polybag, bubble wrap)?
Yes. FNSKU labeling, polybagging, bubble wrapping, bundling, expiration-date labeling, and suffocation warnings are all standard. We follow Amazon's current published prep requirements for each ASIN category. The full prep service breakdown lives at /amazon-fba-prep.
Will Simpl protect my Amazon seller metrics?
Yes — the three Amazon-defined metrics most affected by fulfillment are late shipment rate, order defect rate, and valid tracking rate. Simpl's handling window for FBM ships orders inside Amazon's required ship-by date. Labels from Amazon-approved carriers carry carrier-validated tracking, which keeps valid-tracking-rate inside Amazon's threshold. FBM returns are received, inspected, and dispositioned promptly to keep ODR in range.
Can Simpl support multi-channel from one inventory pool?
Yes. One unit at Simpl can ship to Amazon FBM, an Amazon FBA inbound, Shopify, TikTok Shop, eBay, or B2B — whichever channel sells it first. No double-buying inventory across separate warehouses, no orphaned stock at a marketplace-specific 3PL, no MCF-branded boxes on your DTC orders.
Does Simpl ship in my packaging, not Amazon's?
Always, on every channel. FBM orders ship in your branded box or mailer with your inserts. FBA prep inbounds use polybags and bubble wrap to Amazon's spec (Amazon's own boxes apply only after they reship from an FBA FC). Off-Amazon orders — Shopify, TikTok Shop, eBay — never see Amazon branding.
How fast can I onboard?
Amazon onboarding is more variable than other channels because it depends on your mode mix. Pure FBM is the fastest — Seller Central authorization, SKU sync, and a first inbound can run inside two weeks. FBA prep adds receiving and prep-spec setup. Multi-mode setups with SFP-ready performance positioning take longer. Get in touch with your SKU count, channel mix, and current FBA position and we'll give you a real ETA.
Multi-channel ready

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