Rules based on Order Tags - what to look out for?

You've set up your rule. It's based on an Order Tag. You're testing it and it's still not working. What exactly is the issue here?
Order tags are case-sensitive. Make sure to watch out for every colon, every space, every detail when entering in the value. This will make sure your rule has been set up properly and you are not wasting any time with your returns.
Happy working!