1) request more info / clarify as needed 2) wait 7 days 3) send reminder, with info the report will end up closed as Not Identified, if we don't hear from them 4) wait 7 more days [Note: this reminder step and waiting longer is newer guidance we are using as a trial and will likely become the official guidance at some point based on results from it so far) 5) still no response - scan general area for worst / obvious issues - this is where you can apply best guess scenarios - find something that needs fixing in this area - look harder if you can't find something!
Always close a UR with a comment Even if only to say it's being closed as NI
Avoid longer overly complex replies in UR.
Add closing comment encouraging user to send more URs when needed in future.