Tradedoubler uses OAuth 2.0 for authentication and upon initial connect requires Client ID, Client Secret, Username and Password.
To connect to Tradedoubler, you will need to create a client which provides the Client ID and Client Secret. You can create your client here.
Note: Your Client Secret is shown only once when you create a new client. If you do not know your Client Secret then you must delete and recreate the client.
Should you have any problems connecting to Tradedoubler, please reach out to our support.