Connecting to Allegro
Connect your Allegro seller account to Market Sync by logging in with Allegro and granting access. No API credentials needed.
You don’t need to create API credentials in the Allegro developer portal: you simply log in with your Allegro seller account from Market Sync.
Step 1 - Add the connection
Go to Connections in the app menu, click Add marketplace and choose Allegro from the list of marketplaces (you can use the search field to find it quickly). Then click Connect Allegro.

Step 2 - Start the authorization
The Add Allegro Connection window opens. Click Start Authorization. You will be sent to Allegro to log in.

Step 3 - Log in to Allegro
Log in with the email address (or login) and password of your Allegro seller account.
Step 4 - Allow access
Review the permissions Market Sync requests and confirm to grant access to your account.
You are sent back to Market Sync and the connection is created.
Please note
After adding the connection, the app imports your offers from Allegro 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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