Over 1000 merchants trust OneCart to automatically sync inventory, centralize orders, and save 10+ hours weekly managing their Amazon and Lazada stores.
Join 1,000+ merchants already saving time with OneCart



Connect Amazon and Lazada in under 10 minutes with OneCart's guided setup.
OneCart’s wedge is that it syncs Amazon together with Lazada and your other marketplaces from one dashboard, which the single-channel connectors built into Amazon or Shopify do not do. Amazon reaches a global marketplace audience, while Lazada is a major marketplace across Southeast Asia, and the two authorise in completely different ways. OneCart links an Amazon account and a Lazada store so one inventory pool feeds both and every order lands in a single queue.
OneCart holds the source-of-truth quantity and pushes stock to Amazon, so a sale detected on one channel updates your linked Amazon and Lazada listings. If a quantity would go negative, OneCart sends zero to help prevent overselling.
Orders from both marketplaces are brought into OneCart automatically and land in one queue. Amazon orders are checked on a regular cycle rather than instantly, so you fulfil from one dashboard instead of two seller centres.
Build a product once in OneCart and create it on Lazada, which accepts HTML in the description, while keeping it aligned with your Amazon listings. Map the Variant SKU in OneCart to the Seller SKU in Lazada so stock stays linked.
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 creates the connection and imports your Amazon listings and orders.
Connect Lazada using its 2024 method, which has more steps. Open the Lazada Marketplace page for OneCart in your store's country, select 'Authorization Only' and 'Half a year', agree to the terms, then enter your Lazada Seller Centre login. If you run multiple Lazada stores, repeat this for each one.
Manage everything from one place. Add any other marketplaces you sell on, such as Shopee or TikTok Shop, the same way, so inventory and orders sync across Amazon, Lazada, and the rest together.
Build a product once in OneCart and create it on Lazada, which accepts HTML in the description, while OneCart keeps the matching SKU aligned with your Amazon listings so stock stays accurate across both.
OneCart pushes stock to Amazon, and when a sale happens on Amazon it deducts the OneCart quantity and updates your other channels, so a unit sold on Amazon is reflected on Lazada and the same item is not sold twice.
Everything you need to know about connecting Amazon and Lazada with OneCart.
Amazon connects through Seller Central: you pick your region in the connect modal, then approve OneCart on Amazon. Lazada's 2024 method is longer: you open the Lazada Marketplace page for OneCart, choose Authorization Only and Half a year, accept the terms, then log in. Each Lazada store has to be authorised one by one.
Lazada API authorisations expire. If the expiry date in Lazada Seller Centre differs from what OneCart shows, open the shop's Settings page in OneCart and click the yellow Update Lazada Expiry Date button to bring them back into line.
It is built to reduce it. OneCart holds the source-of-truth quantity and updates your linked Amazon and Lazada listings when stock changes on a connected channel, and it sends zero rather than a negative number. No tool can promise zero oversells across third-party marketplaces, but keeping one stock pool is the main way to avoid double-selling.
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 Amazon and Lazada.
"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. If you're still not on OneCart, you're leaving time, money, and peace of mind on the table."

"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% and fulfillment time by 75%."

"Order processing that used to take 3 hours now takes just 20 minutes with OneCart. Our warehouse efficiency increased 400%, deliveries are faster, and customer satisfaction scores are up 32% since implementation."

"The OneCart team's support is outstanding. When we needed help expanding to Lazada, they worked with us one-on-one until everything was perfect. We've increased sales by 47% with no additional staff since connecting our platforms."






Expanding to Lazada from Amazon used to take days. OneCart makes it happen in hours. Copy your entire product catalog with one click - complete with descriptions, images, variants, and pricing. Get selling on Lazada without the manual work.
"I expanded to Lazada in a single afternoon using OneCart. What would have taken my team a week took just hours."
The average multi-channel seller loses $2,000+ monthly to inventory discrepancies. OneCart eliminates this entirely. When a product sells on Amazon, we instantly update Lazada's stock level, and vice versa.
Manage everything from one dashboard. Set low-stock alerts, track inventory across warehouses, and make bulk adjustments that apply to all your sales channels instantly.
"Since using OneCart, we've completely eliminated overselling issues that used to cost us thousands monthly."
Stop the daily platform-switching nightmare. OneCart consolidates all your Amazon and Lazada orders into a single, intuitive dashboard. See everything at a glance and fulfill orders in batches.
Our customers report processing times dropping from hours to minutes. Faster fulfillment means happier customers, better reviews, and higher platform rankings.
"Order processing that took 3 hours now takes 20 minutes. OneCart completely transformed our fulfillment process."
See how much you could save by connecting Amazon and Lazada with OneCart.
The all-in-one solution for Amazon & Lazada sellers who want to grow without the headaches.
Never worry about stock levels again. Our instant, 24/7 synchronization updates Amazon and Lazada within seconds of any change.
Cut admin work by 75%. Automate the tedious tasks of updating multiple platforms and reconciling inventory discrepancies.
Manage products, inventory, and orders for Amazon, Lazada, and all your other channels from one intuitive interface.
Add new sales channels or handle 10X order volume without adding staff. OneCart scales with your business without added complexity.
Get help when you need it. Our responsive team is based in Singapore and provides personalized assistance for your integration.
No credit card required • Cancel anytime
Everything you need to know about connecting your stores with OneCart.
OneCart creates a real-time connection between your stores that works 24/7:
This happens automatically without any manual work, preventing overselling and inventory discrepancies that cost merchants thousands in lost sales and customer goodwill.
Our customers report saving 75-90% of the time previously spent on order management:
For a merchant processing 50 orders daily across multiple platforms, this typically saves 2-3 hours every day, time you can invest in growing your business instead.
Most merchants complete the basic setup in under 10 minutes:
Your inventory will begin syncing immediately. Our onboarding team is available to help if you need assistance, and we offer premium onboarding services for larger merchants with complex requirements.
OneCart is designed for complex catalogs with variations, bundles, and kits:
This ensures that even sophisticated product catalogs with thousands of SKUs and variations maintain perfect accuracy across all your sales channels.
OneCart scales to support businesses of all sizes:
We have clients ranging from small merchants with 10 orders/day to large enterprises processing thousands of orders daily across multiple channels. The system is designed to grow with your business.
Our integration experts are ready to help you connect Amazon and Lazada seamlessly.
Our simple 3-step process gets you up and running fast.
Create your OneCart account and connect your Amazon and Lazada stores through our guided setup.
Time: 10 minutes
Choose how products, inventory, and orders sync between platforms based on your business needs.
Time: 15 minutes
Begin managing your Amazon and Lazada stores from one dashboard with real-time synchronization.
Time: Immediate
Most merchants complete setup in under 30 minutes!
Start Your Free 14-Day TrialJoin 1,000+ merchants who have automated their Amazon and Lazada operations with OneCart.
30-Day Money-Back Guarantee • Singapore-Based Support