Amazon inventory integration: FBA, orders, and settlement-verified profit
Amazon order management, listings, inventory sync, FBA inbound, Buy Shipping, returns and settlement reconciliation — the whole Amazon operation next to every other channel you sell on, from an app listed in Amazon’s Selling Partner Appstore.
Rilk is a listed app in Amazon’s Selling Partner Appstore, the public directory of Amazon-approved seller tools. Getting there took almost two years — building started in October 2024 — and multiple rounds of Amazon review, including the Appstore listing review and a data security assessment under Amazon’s Data Protection Policy. Access to buyer names and shipping addresses is a restricted Amazon role, granted only after that assessment; Amazon granted Rilk that role — Direct-to-Consumer Shipping — on 24 August 2026. That is not a credential casual integrators have, and it is one of the reasons Rilk’s Amazon integration goes deeper than tools built on public-tier developer access alone.
Orders land as Amazon places them, usually within seconds, with a scheduled catch-up sweep behind that so a missed message never loses an order. Inventory stays in lockstep across every channel: sell three units anywhere and the Amazon listing drops by three, so one pool can safely feed Amazon, Walmart, eBay, Shopify, and Back Market without overselling.
What you can do
FBA inbound built and tracked end to end
Packing, placement, partnered carrier, delivery window, box labels, and bill of lading, with the units you send tracked through transit until Amazon actually receives them — sent, in transit, and received are three different states, kept apart.
Amazon Buy Shipping on the same screen as your own carriers
Rates for merchant-fulfilled orders priced next to UPS, FedEx, USPS, and DHL. Multi-box orders buy every label in one shipment, and a void cancels the whole thing rather than box one. Flat-rate services that do not actually fit the box are filtered out before you can buy a label the parcel cannot legally ship in.
Settlement reports parsed line by line
Every referral fee, FBA fee, refund, and promotion is matched to the order and unit that produced it, so the fee number on a sale is the one that hit your bank, not an estimate off list price.
Amazon returns matched to the order
Every return matched to its order, with the reason and the tracking. Then restock it, send it to regrading or write it off on your dock, and refund from Rilk.
Catalog data filled in from Amazon
Enter an ASIN and Rilk pulls brand, model, storage, colour, package weight, and dimensions off Amazon’s catalogue — the same dimensions your carrier rates are quoted from.
What's supported
Frequently asked questions
Does Rilk handle FBA and merchant-fulfilled inventory at the same time?
Yes. Merchant-fulfilled stock draws from your shared warehouse pool, and FBA stock is tracked separately through its own lifecycle — on your shelf, in transit to Amazon, and received at Amazon.
Does the Amazon integration support Buy Shipping?
Yes. For merchant-fulfilled orders Rilk shows the Amazon Buy Shipping rate next to your own UPS, FedEx, USPS, and DHL rates. Multi-box orders buy every label under one shipment, and flat-rate quotes are filtered out for boxes that are not actually that container.
How does Rilk reconcile Amazon settlement reports?
Line by line. Before the settlement arrives an order carries Amazon’s estimated fees; when it posts, each referral fee, FBA fee, refund, promotion, and reimbursement is matched to the order and unit that produced it, and the real Buy Shipping label price is recorded as the shipping cost.
How does Rilk stop me overselling on Amazon?
Your Amazon quantity comes from the same stock pool as every other channel, units already picked for another order are never offered again, and two of your SKUs on the same ASIN never promise more than you have. On top of that, set a safety buffer for Amazon and a maximum quantity Amazon is ever shown.
What software do I need to sell on Amazon and Walmart from one inventory?
One stock pool that both listings draw from, one order inbox, and one profit number that reads both settlements — free to connect Amazon, Walmart, eBay, or Shopify, with stock sync on Pro and no per-channel fee on any plan.
Connect Amazon and every other channel you sell on
Free tier, no credit card required.