In order to connect your TradeDoubler account to Afflytics, you will need your TradeDoubler Username/Password, Client ID, and Client Secret.
You can obtain these by visiting https://publishers.tradedoubler.com/login, logging into your TradeDoubler account, and navigating to the Clients page (Account > Clients) from the top nav.
On the Clients page, click "Add client".
You can call the client whatever you want. Hit "Save".
Important: Once you've hit "Save", you will see a green banner containing your Client Secret. Don't navigate away from this screen until you have copied this value and pasted it into Afflytics.
Also, copy and paste your Client ID into Afflytics.
In addition to these values, you will also need to enter your TradeDoubler username and password into Afflytics.