1. 
2. Click the 'Configure' link next to the application link that you want to configure trusted apps authentication for.
3. Click the 'Incoming Authentication' tab. The incoming authentication page will be displayed.
4. Click the 'Basic Access' tab.
5. Click the 'Configure' button and enter the credentials that the your application will use to log into the remote application, i.e. 'Username' and 'Password'.
6. Click the 'Apply' button to save your changes.