In this video, I cover the mechanics of creating a simple behavior tree in Unreal. By the end, we have a simple agent doing a simple task using a behavior tree.
At one point in the video, I mention Unreal's Name type. There are three: Name, String, and Text. This post has good information on the differences between the three and when to use them:
https://answers.unrealengine.com/questions/90638/text-string-or-name.html
