While editing an end date on a required expression on an existing rule, apparently I put in a date it didn't like and before I could save it, it gave me this error message:
What am I supposed to do now? Leaving and reloading the rule editor gives me the same error message so I'm locked out of the rule and can't edit it. Frustrating....
Just as general practice, I always clone a rule, pause the original, and edit the newly cloned rule. That way you have a reference as to what you started with, and as a backup in case something goes wrong.
It originally said March 31st. I changed the March to April and before I could change the 31st to 1st, it gave me that error message..... does that help?