Connect Xero to Amazon and eliminate manual data entry. OneCart automatically syncs inventory, pushes products, and writes orders back to your ERP.
Join 1,000+ merchants connecting their ERP to e-commerce



Connect Xero and Amazon in under 10 minutes.
Amazon volume has to land in your accounts cleanly, and manual entry does not scale. OneCart connects Amazon to Xero so each order becomes a draft invoice you review and approve, and your other channels feed the same Xero organisation from one dashboard.
Each Amazon order becomes a draft invoice in Xero with its line items and totals, so high volumes do not mean hours of manual entry, and nothing posts until you approve.
Map each shop to a Xero contact, and OneCart records your sales against it so your Xero contacts stay tidy.
Turn on daily auto-sync to have OneCart create the day's draft invoices, sync orders one at a time with a preview, or backfill a date range when you set up.
Connect Amazon: start adding an Amazon shop in OneCart and pick your region in the Amazon connect modal. OneCart supports Amazon US, Canada, Mexico, Brazil, the UK and EU, plus Singapore, Australia, and Japan. You are taken to Amazon Seller Central to give consent, and once you approve, OneCart imports your Amazon orders.
Connect Xero: in OneCart go to Reports > Finance > Finance Integrations and connect Xero. Approve OneCart on Xero's consent screen and choose the organisation you want to sync to.
Map each shop to a Xero contact, then turn on daily auto-sync or sync orders one at a time. OneCart creates a draft invoice in Xero for each Amazon order, which you review and approve.
Each Amazon order becomes a draft invoice in Xero with its line items and totals, so high volumes do not mean hours of manual entry, and nothing posts until you approve.
Add Shopify, WooCommerce, Shopee, Lazada, or TikTok Shop to the same OneCart account and their orders feed the same Xero organisation.
Everything you need to know about connecting Amazon and Xero with OneCart.
Yes. OneCart supports Amazon US, along with Canada, Mexico, Brazil, the UK and EU, plus Singapore, Australia, and Japan. You choose your region when you connect, and orders from that marketplace flow into Xero as draft invoices.
OneCart creates them as draft invoices, so nothing hits your accounts until you approve. You can turn on daily auto-sync, sync orders one at a time with a preview, or backfill a date range.
Yes. OneCart supports Amazon US, Canada, Mexico, Brazil, the UK and EU, plus Singapore, Australia, and Japan. You choose your region when you connect, and orders from that marketplace flow into Xero as draft invoices.
OneCart has plans for sellers at different order and SKU volumes, so the right plan depends on how much you sell. You can compare plans and what each includes at /pricing/.
Here's what businesses like yours have achieved by connecting their ERP to e-commerce.
"OneCart didn't just fix our operations—it gave me my sanity back. After struggling with platforms that broke everything, I finally found a system that's reliable, affordable, and backed by real support."

"OneCart saved our business during the pandemic. Stock automatically syncs between platforms and I can manage everything remotely. We've cut inventory discrepancies by 100%."

"Order processing that used to take 3 hours now takes just 20 minutes with OneCart. Our warehouse efficiency increased 400%."

"The OneCart team's support is outstanding. We've increased sales by 47% with no additional staff since connecting our platforms."






Your Xero system holds your master product data. OneCart lets you push your entire catalog—SKUs, descriptions, pricing, images—directly to Amazon without re-entering anything.
"We launched on Amazon in one afternoon. What would have taken weeks of manual entry took hours with OneCart."
Your Xero is the source of truth for inventory. OneCart continuously syncs stock levels to Amazon, so you never oversell or show out-of-stock items as available.
When inventory changes in Xero—from sales, returns, or receiving—Amazon updates automatically.
"Since connecting our ERP to our channels, we've eliminated the overselling issues that used to cost us thousands monthly."
When a customer orders on Amazon, OneCart writes the order directly into Xero. No manual entry, no CSV imports, no reconciliation headaches.
Your finance team gets accurate revenue data. Your warehouse gets pick lists. Your ERP stays the single source of truth.
"Order processing that took 3 hours now takes 20 minutes. Our accounting team finally has real-time visibility."
See how much you could save by connecting Xero to Amazon.
The all-in-one ERP-to-e-commerce solution for growing businesses.
Xero remains your master system. All data flows from ERP to channels, keeping everything consistent.
Inventory pushes out, orders flow back. Your ERP and Amazon stay perfectly synchronized.
Orders auto-post to Xero. Revenue, costs, and inventory valuations are always accurate.
Add channels, handle 10X orders—without hiring data entry staff. OneCart scales with you.
Our team understands Xero integrations. Get help from people who know your systems.
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Common questions about connecting your ERP to e-commerce.
OneCart connects to Xero via API and monitors inventory changes. When stock levels change in your ERP—from sales, receipts, or adjustments—we automatically push the updated quantities to Amazon. This happens in near real-time, preventing overselling.
When an order is placed on Amazon, OneCart captures it and creates the corresponding sales order in Xero. Customer details, line items, pricing, and shipping info all transfer automatically. Your warehouse and finance teams see orders in their familiar ERP interface.
Basic setup takes 1-2 hours for standard configurations. Connect your Xero account, connect Amazon, map your products, and you're syncing. Complex setups with custom fields or multi-subsidiary configurations may take longer—our team provides guided onboarding.
Yes. OneCart supports multi-subsidiary and multi-location setups. You can map specific warehouses to specific channels, route orders to the right subsidiary, and maintain separate inventory pools—all while keeping everything synchronized.
OneCart connects Xero to 15+ sales channels including Shopee, Lazada, Amazon, Shopify, TikTok Shop, and more. Manage all your channels from one dashboard, with inventory syncing across all of them from your single ERP source of truth.
Most merchants are up and running the same day.
Link your Xero account to OneCart using our secure API connection. We'll import your products and inventory.
Time: 30 minutes
Authorize your Amazon store. Map products between systems and configure sync settings.
Time: 15 minutes
Enable sync and watch your systems work together. Inventory flows out, orders flow back—automatically.
Time: Immediate
Most merchants complete setup in under 1 hour!
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