My suggestion to try to reduce the number of unresolved URs without answers.

When an editor requests more information about a UR, make three buttons appear when the reporting user opens the app:

Collaborate now: user clicks to enter the requested information;

Collaborate later: user clicks and can use the app and the buttons appear the next time the app is opened;

Don't collaborate: user clicks and the UR is deleted from WME and the editor receives a notification that the user did not collaborate.

The buttons will appear whenever the editor sends a message or the user clicks to collaborate later.