eBay: New API connection error

Overview

This article covers an error that can appear when reconnecting your eBay integration using the new API.

Cause

The error occurs when your browser attempts to reuse saved login data from a previous session, which prevents the new connection from completing.

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Solution

Retry the connection in a private or incognito browser window. This ensures no cached credentials interfere with the authorisation flow.

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If the error persists after trying an incognito window, contact our support team.