Over 1000 merchants trust OneCart to automatically sync inventory, centralize orders, and save 10+ hours weekly managing their WooCommerce and Shopee stores.
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Connect WooCommerce and Shopee in under 10 minutes with OneCart's guided setup.
WooCommerce gives you a self-hosted store on WordPress, and Shopee adds marketplace reach on top of it. The two authenticate in completely different ways, so OneCart bridges them: WooCommerce through REST API keys, Shopee through Seller Centre. Once both are linked, inventory and orders stay in sync across your own site and the marketplace.
WooCommerce and Shopee share one stock pool in OneCart. When a sale happens on WooCommerce, OneCart reduces the same SKU on Shopee, and the reverse too, so both channels stay honest about what is in stock. Negative stock is sent as zero to help prevent overselling.
Orders from both your WooCommerce site and Shopee are brought into OneCart automatically and land in one dashboard, so you fulfil from a single queue instead of moving between WordPress and Shopee Seller Centre.
Manage products once in OneCart and push them to Shopee from Listings > New. Shopee's own rule requires titles of 10 to 120 characters, and OneCart converts the description to plain text and replaces the '&' character so the listing is accepted. Map each Variant SKU in OneCart to the SKU in Shopee.
Connect WooCommerce with REST API keys. In your WordPress backend go to WooCommerce > Settings > Advanced > REST API and click Add Key. Set the Description to OneCart, pick an admin user, set Permissions to Read/Write, and click Generate API key. Save the API Key, API Secret, and your site URL. Under Legacy API, make sure Legacy API is enabled. If you run a firewall such as Cloudflare, whitelist the OneCart app first.
Add the WooCommerce store to OneCart with those credentials at app.getonecart.com/shops/new?platform=WooCommerce.
Connect Shopee: go to Settings > My Platforms > Manage Connections, open the Inactive Shops tab, click Refresh Shopee, log in to Shopee Seller Centre, and click Confirm Authorization.
Manage products once in OneCart and push them to Shopee, instead of rebuilding each listing by hand in Shopee Seller Centre.
When a sale happens on WooCommerce, OneCart reduces the same SKU on Shopee straight away, keeping both channels honest about what is in stock.
Everything you need to know about connecting WooCommerce and Shopee with OneCart.
REST API credentials. In WooCommerce > Settings > Advanced > REST API, add a Read/Write key for an admin user, save the key, secret, and site URL, and enable the Legacy API. If a firewall such as Cloudflare is active, whitelist the OneCart app.
No. Shopee uses authorisation inside Shopee Seller Centre, not API keys. You add the Shopee shop in Manage Connections, click Refresh Shopee, and confirm the authorisation.
WooCommerce connects once you generate Read/Write REST API keys for an admin user and enable the Legacy API, then add the store to OneCart with those credentials. Shopee is authorised inside Seller Centre in one pass. The main thing to allow for is generating the WooCommerce keys and whitelisting the OneCart app if you run a firewall such as Cloudflare.
OneCart has plans for different order volumes and channel counts rather than a flat price. You can review the current tiers and what each one includes on the /pricing/ page.
Here's what businesses like yours have achieved by connecting WooCommerce and Shopee.
"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 Shopee, 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 Shopee from WooCommerce 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 Shopee without the manual work.
"I expanded to Shopee 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 WooCommerce, we instantly update Shopee'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 WooCommerce and Shopee 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 WooCommerce and Shopee with OneCart.
The all-in-one solution for WooCommerce & Shopee sellers who want to grow without the headaches.
Never worry about stock levels again. Our instant, 24/7 synchronization updates WooCommerce and Shopee 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 WooCommerce, Shopee, 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.
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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 WooCommerce and Shopee seamlessly.
Our simple 3-step process gets you up and running fast.
Create your OneCart account and connect your WooCommerce and Shopee 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 WooCommerce and Shopee 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 WooCommerce and Shopee operations with OneCart.
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