I have noticed that if a requester sends an email with no subject line, ServiceDesk Plus creates the subject "Not Provided" when it fetches the email. As this may be confusing when we reply to the requester, I wanted to change it to "Subject left blank". So, I created a Request Template with this in the subject, and then created a business rule saying to use that template whenever a subject line is blank. When I try to save the business rule, I get the error in the attached.

Is the rule having trouble with the empty criteria?

Is there another way that I can do this?

Thanks,

Diana