Register an OAuth app with Amazon and connect it to Tenklo
This guide shows you how to register your own app with Amazon to obtain your OAuth credentials (client id & secret). These are required to let your users grant your app access to their Amazon account.
Amazon uses different domain extensions for different regions (e.g., amazon.com for the US, amazon.co.uk for the UK, or amazon.de for Germany). When creating a connection in Tenklo, you can specify the region-specific domain using connection configuration parameters.