How We Integrate Walmart Marketplace With Your Store
Selling on Walmart Marketplace in the US means working through Walmart's official Marketplace API — a real REST platform covering items, orders, inventory, price and fulfilment. AppsyOne builds a custom bridge between your own store and that API so approved orders drop straight into your systems, stock and pricing stay accurate, and you stop re-keying between Seller Center and a spreadsheet. It plugs directly into a custom appsy.one ecommerce build rather than a rented dashboard you never truly control.
This matters most for overseas and Indian sellers expanding into the US. Walmart Marketplace has its own catalogue rules, GTIN and category requirements, and US sales-tax obligations that generic connectors handle badly. We map your SKUs to Walmart items the way your business actually works, push inventory and price updates through the API, and pull orders and fulfilment status back on a schedule you set — with Walmart Fulfillment Services (WFS) or your own 3PL wired in where you need it.
Getting live on Walmart is a gated process: items clear GTIN and UPC validation plus item-setup approval before a single listing turns searchable. Once you're through, we run the whole pipeline as a build you buy once in INR — never a percentage of your US sales creamed off by us. Walmart Fulfillment Services or your own 3PL feeds the same stock count, and sales-tax nexus is calculated through Avalara or TaxJar, so your US catalogue, pricing and books stay reconciled from one place.
Walmart Marketplace Custom Integration vs a SaaS Aggregator
When a plug-and-play tool is the smart call — and when a custom build you own pays off.
What We Sync With Walmart Marketplace
Every system your orders, stock and money already flow through — connected.
Official Walmart Marketplace Resources
Straight from the source — Walmart Marketplace’s own seller programme and developer documentation, the same primary references we build against.
Simple, Flat Integration Pricing
Custom-built marketplace integrations at a fixed one-time price. Pricing scales only with the number of integrations — never with your sales.
Starter
Get live on a single marketplace, synced to your store.
- Connect your store to any 1 portal (Amazon, Flipkart, Meesho…)
- Product catalog upload & mapping to the marketplace
- Order sync into your store / dashboard
- Inventory (stock count) sync one way
- Custom-built on the official API — you own the code
- No transaction fees · no % of sales · no monthly lock-in
Growth
Sell across several marketplaces from one source of truth.
- Everything in Starter, across up to 3 marketplaces
- Single source-of-truth inventory — never oversell across channels
- Unified order dashboard for all connected marketplaces
- Two-way stock & price sync
- Returns / RTO status pulled back into your store
- Custom-built & owned — no transaction fees, ever
Pro
Full omnichannel: marketplaces + ERP/accounting + analytics.
- Everything in Growth, across up to 5 marketplaces
- ERP / Tally / accounting sync (orders & invoices flow back)
- Custom seller analytics — RTO %, commission-adjusted margins
- Retry + error handling so nothing is lost when an API is down
- Priority support & handover documentation
- One flat fee — no per-order, per-lead or GMV-based charges
Need more than 5 marketplaces, a bespoke ERP bridge, or a custom seller portal? Talk to us for a custom quote.
Walmart Marketplace Integration — Questions Sellers Ask
Common questions about our walmart marketplace integration solutions.
More Global Marketplaces Integrations
We connect your store to every major channel — pick another to sync.