(Die Seite wurde neu angelegt: „#Go to the User Permissions page in Seller Central and log into your Amazon merchant/seller account for the marketplace you want to connect as the primary user…“)
Go to the User Permissions page in Seller Central and log into your Amazon merchant/seller account for the marketplace you want to connect as the primary user.
Click the Authorise a developer button.
In the Developer name text box, enter the name of the application developer that you are authorising (csv4you). This doesn't need to be the exact name; it is merely for your reference in the future.
In the Developer ID text box, enter the Developer ID (5452-3007-9092) and then click Authorise a developer.
Your MWS Auth Token appears.
Come back to csv4you.com. Go to 'My Account -> Base Settings -> Amazon' and enter the MWS AuthToken from the previous step and your Merchant/Seller ID.
Click [ Save ]
More information on this topic here, directly from Amazon.