Grab Your Login Information
Before you install the iPadOS 13 beta, make sure you track down all of your login information.
First of all you'll need your Apple ID to get started with the installation process so track down your info (or the info of the person you're installing for) before you start up the installation. If you don't have this information you won't be able to proceed.
After you install, you might get logged out of some of your apps and services. If you haven't had to login to your accounts in awhile, you may have forgotten your login info.
This is probably the last thing you want to deal with during the work/school day so make sure you have everything ready to go before you begin.