What Katana asks for
The Katana connection form for Linnworks asks for one field: Access Token.
Access Token: the token Linnworks provides after you authorize the connection with your Linnworks account.
Find your credentials in Linnworks
Go to the Linnworks authorization page at this exact URL: https://apps.linnworks.net/Authorization/Authorize/6ef8ea97-1dad-4936-ba41-9b346c68dbeb
Log in to your Linnworks account.
Follow the on-screen instructions to authorize the connection.
When authorization succeeds, copy the access token Linnworks provides.
In Katana, paste the token into the Access Token field of the connection form and click Connect.
