Every campaign has its unique pincode. This pincode you can use for multiple purposes.
Don't know where you can find your campaign's pincode? Check out this article.
GoPhoto - Order Kiosk app
When your plan includes a print station, you'll need the pincode to login to your GoPhoto - Order Kiosk app.
GoPhoto - Live Preview app
You can easily keep an eye on all the photos that are being uploaded to your campaign. At the website http://live.gophoto.pro you can login with your pincode to quickly view the amount of visitors, shot photos, printed photos at your location and the amount of printing paper left in your print station. The latest photos uploaded to your campaign will also appear here.
GoPhoto - Slideshow App
The website http://slide.gophoto.pro gives you a slide show of the newest photos uploaded to your campaign. By opening this website on a screen at your location you can show a live preview to your visitors.