To Set up Amazon please see steps below;
Log into Seller Central
Under Settings ? User Permissions look for “Third party developer and apps” and click te
On the following page underneath the “Manage your apps” header click the “Authorize new developer” button.
Input the Developer name as “ShipCaddie” and the attached Developer ID: 590902518916 and click next.
Read through the details for authorizing a new developer. If you agree and understand the conditions please click the check box marked “I understand” and click the next button. (Please note that if you do not agree to these terms and conditions, we will not be able to integrate your Amazon orders into our system.)
Congratulations, you have successfully obtained your Seller ID and Marketplace ID along with your MWS Auth Token all of which we will require. Please save these ID’s and token in a safe place and do not share them with anyone that you do not want to have access to your Amazon orders.