Free plan. no credit card required

Overselling is costing you
customers, reviews, and money.

You sold it on eBay. You forgot to update Shopify. Now you're canceling an order, refunding a customer, and watching your seller rating drop. Commerce Kitty stops this cycle.

Stop Overselling Now
Syncs inventory across all your channels Shopify Amazon Etsy eBay WooCommerce BigCommerce
The Real Cost

Overselling doesn't just lose one sale. It triggers a chain reaction.

2%
eBay defect rate threshold
before account restrictions
$5–25
Cost per canceled order
(refund processing + lost time)
30%
Drop in search visibility
after seller rating decline
72%
Of buyers won't return
after a canceled order
A Familiar Story

This is what happens without real-time sync

9:14 AM. Item sells on eBay

Last unit of a popular product. eBay marks it sold. But Shopify, Etsy, and Amazon still show it as available.

9:22 AM. Same item sells on Etsy

A second customer buys it. You don't find out until you check orders that afternoon.

2:45 PM. Cancel, refund, apologize

You message the Etsy buyer, cancel the order, process the refund. 15 minutes gone on damage control.

Next day. 1-star review

"Seller canceled my order after I already paid. Terrible experience." Your defect rate goes up. Search ranking goes down.

With Commerce Kitty

9:14 AM. Item sells on eBay

Commerce Kitty instantly updates Shopify, Etsy, and Amazon. Stock goes to zero everywhere within seconds.

9:15 AM. No second sale possible

The item is marked unavailable on every channel. No oversell. No cancellation. No angry customer.

Before & After

The difference is night and day

✗ Without Commerce Kitty

  • Manually updating 3–5 platforms after every sale
  • Constant risk of selling items you don't have
  • Canceled orders pile up, customers leave angry
  • Seller ratings drop, search visibility tanks
  • Hours lost to spreadsheets and browser tabs
  • No confidence that your numbers are right

✓ With Commerce Kitty

  • All channels update automatically in seconds
  • Zero overselling. stock adjusts instantly
  • Every order can be fulfilled, every time
  • Seller ratings improve, customers come back
  • One dashboard instead of five browser tabs
  • Real-time accuracy you can trust

Real-time inventory sync across every channel

Connect your sales channels in minutes. Commerce Kitty keeps your stock accurate everywhere you sell. Free plan available.

Start Syncing Free
How It Works

Three steps to never overselling again

No complicated setup. No developer needed. Just connect and go.

1

Connect your channels

Link Shopify, Amazon, Etsy, eBay, and more. Takes about 2 minutes per channel.

2

Map your products

Commerce Kitty matches products across channels automatically. Review and confirm the matches.

3

Sell without fear

Inventory stays in sync across every channel. You never oversell again.

Get Started Free

I was spending two hours every morning updating stock counts across four platforms. Now Commerce Kitty handles it automatically. I haven't oversold a single item since switching.

Sarah M.. eBay & Shopify seller, vintage clothing
FAQ

Questions about overselling protection

How fast does inventory actually sync?
Within seconds. When a sale happens on one channel, Commerce Kitty immediately updates stock levels on every other connected channel. No delays, no batch processing.
What if two sales happen at the exact same time?
Commerce Kitty uses real-time locking to prevent race conditions. If two orders come in simultaneously for the last unit, only one will go through. The second customer sees the item as out of stock.
Will this fix my existing seller rating?
It won't erase past defects, but it prevents new ones. Most sellers see their defect rate drop to zero within the first month. On eBay, that means better search placement and more visibility.
How long does setup take?
Most sellers are fully connected in under 5 minutes. You authorize each channel (Shopify, eBay, etc.) with a few clicks, and Commerce Kitty automatically imports your products and matches them across channels.
What if I sell on channels you don't support yet?
We currently support Shopify, Amazon, Etsy, eBay, WooCommerce, and BigCommerce. If you need a channel we don't have yet, let us know. we prioritize integrations based on seller demand.

Every canceled order costs you more than a refund

It costs you a customer, a review, and your search ranking. The longer you wait, the more it compounds. Fix it today.

Stop Overselling Now
Free plan included No credit card required Set up in 5 minutes

Ready to sync your inventory?

Connect your sales channels in minutes. Real-time sync across Shopify, Etsy, Amazon, eBay, and more. Free plan available, no credit card required.

Start Syncing Free
Free plan included No credit card required Set up in 5 minutes