"Message Dictionary couldn't open the ICX application message file. Cannot open file /u02/apps/apps_st/appl/icx/12.0.0/mesg/US.msb for reading."
When I checked the location it was not there. Then I though running generate message file from adadmin but it didn't help. Here is the solution :
We have run Concurrent request "Generate Messages" for "Oracle iProcurement" and it will generate US.msb file under required location.
Happy Troubleshooting !!!