“You cannot have a label inside if/then statements or { } / No labels exist”
If you are getting either of these error messages, then that means you put the template inside of a choice or if/elif/else code. Templates have labels and labels cannot be inside of brackets. You will need to place the template outside of the choice, then put a goto inside the choice that leads to the first label of the template. HERE is an example of how to do that.