My Help Topic has a Custom Form called Physical Location. It has a Form Field with a Label called Building with a Type of Custom List called Buildingss and a variable name of building.
Under Lists I have a Custom List called Buildings. On its Properties tab, I've tried various things to make the Label and Variable happy, but the Properties box is red so I think it's mad about something, but it doesn't say what. In this example I've used "building2" to make sure the name is unique, but nothing seems to work.
If I tr to add %{ticket.building2} to the Email Template, it says it's a typo.