Marketplace
eBay
LIVEeBay Sell APIs — Fulfillment (orders, shipping, refunds) + Inventory (items get/put). OAuth 2.0 user access tokens with refresh. No EDI required.
eBay Sell APIs — Fulfillment (orders, shipping, refunds) + Inventory (items get/put). OAuth 2.0 user access tokens with refresh. No EDI required.
- eBay seller account in good standing.
- eBay developer app — register at developer.ebay.com.
- User access token obtained via OAuth consent (we drive this).
- 1
Text us "eBay" with your phone number.
- 2
Complete eBay OAuth in the popup; we capture refresh token.
- 3
First sync: last 30 days of orders + active inventory items.
- 4
Optional: enable auto-fulfillment routing through Commerce Index inventory + 3PL stack.
What syncs after connection
Orders
get_orders with filter; full line items, shipping address, payment status
Shipping Fulfillment
create_shipping_fulfillment with tracking number + carrier
Refunds
issue_refund with reason codes
Inventory Items
get/create/replace items via Inventory API
Agents that act on this data
OAuth token expires mid-sync
Refresh tokens last 18 months. Our client handles refresh automatically; check sync_log for OAuth refresh errors.
Apparel listings rejected (2026 update)
eBay now blocks non-standard size info for Apparel & Footwear (July 2026). Use standard size taxonomy in listing attributes.