I would like to make a search based on regex...but it does not work. The idea is to select only Initiator User Name (sun) formatted a follows: 2 alphanumerical characters and 5 numerical (e.g. A000005 or FR00001). I try the following criteria but it seems not working...

AND (sun match regex("\w{2}\d{5}"))

I have try the regex and it seems the syntax is ok. Could you help me to find the good way to express regex expression in sentinel (for search criteria)