Currently my team and I are retreiving information from an external database and used the database mapping tool. Everything works fine and I can see that it connected properly via my Pega application. My question is, how do we access the information and connect it to our UI?
I'm not sure if this is your solution but you can use mapped property on section - for example, you can drag & drop mapped property from application explorer to section to display information of external database.
You can load your database information using report definition, data page etc.
Simplest way is to associate your page/page list property to datapage to show information.