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Marketplace Configurations

Connecting to eBay

Connect your eBay seller account to Market Sync by choosing your eBay site, logging in with eBay and granting access. No API credentials needed.

Thomas Lang
Written by Thomas Lang
Updated November 10, 2026

You don’t need to create API keys in the eBay developer program: you simply log in with your eBay seller account from Market Sync.

Step 1 - Add the connection

Go to Connections in the app menu, click Add marketplace and choose eBay from the list of marketplaces (you can use the search field to find it quickly). Then click Connect eBay.

Choose eBay as marketplace

Step 2 - Choose your eBay site and start the authorization

The Add Ebay Connection window opens. Under Marketplace, select the eBay site you sell on (for example Germany or Great Britain) and click Start Authorization. You will be sent to eBay to log in.

Add eBay Connection window

Step 3 - Log in to eBay

Log in with the username or email address and password of your eBay seller account.

Step 4 - Allow access

eBay shows which permissions Market Sync requests. Click Agree to grant access.

You are sent back to Market Sync and the connection is created.

Please note

After adding the connection, the app imports your listings from eBay and matches them with your Shopify products using the matching method set on the connection (EAN to Shopify barcode, or SKU). Once the products are successfully linked, the orders will be imported.

Settings such as the order number prefix, order tags and stock locations can be changed afterwards in the settings of the connection.

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