You could do something like create a ticket rule (under helpdesk settings) to look for a specific word/phrase and use that to set a specific category or assign to someone so you can look at just the tickets missing the phrase in one place.
Something like a custom category sap_missing and if missing set to TRUE. If there FALSE and the ticket runs like normal. If you are emailing notices to the users they will see that line in the initial "your ticket is open" email.
They would see something like this
On Jun 16, 2015 @ 02:10 pm System Admin wrote:
-#set c_sap_missing=TRUE
You can also then run a custom report just on that field and quickly see what needs to be addressed.
