Syncing eBay and BigCommerce inventory without overselling
Sell the same stock on eBay and BigCommerce with confidence. ZapInventory keeps one accurate quantity per product and updates both channels within seconds of every sale.
Connect eBay and BigCommerce in four steps
- 1
Connect eBay
Authorise ZapInventory to read and update your eBay products and stock.
- 2
Connect BigCommerce
Authorise BigCommerce the same way so both channels share one inventory.
- 3
Match your products
Map products across eBay and BigCommerce by SKU or manually, so each item links to a single stock figure.
- 4
Choose sync direction and go live
Pick one-way or two-way sync, run a test, then let eBay and BigCommerce stay in step automatically.
eBay and BigCommerce sync questions
How does syncing eBay and BigCommerce work?
ZapInventory connects both accounts and keeps one stock figure per product. A sale on eBay or BigCommerce updates the other within seconds, so the same unit is never sold twice.
What happens if an item sells on eBay and BigCommerce at the same time?
Conflict resolution favours the most recent confirmed order and writes the new quantity to both channels, so stock never goes negative.
Do my eBay and BigCommerce products need matching SKUs?
Matching SKUs make setup instant, but ZapInventory can also map products manually, so mismatched eBay and BigCommerce catalogues still sync correctly.
How often does eBay and BigCommerce sync?
Continuously. ZapInventory polls both channels and writes stock changes in real time rather than on a fixed schedule, so availability is always current.
Start syncing your inventory in minutes
Try ZapInventory free for 14 days. No credit card required. Connect your channels, sync your stock, and see every order in one place. ZapInventory is now ffinventory.