I modified the standard UWL XML config file (com.sap.pct.srm.core) located at System administration->System Configuration->Universal worklist & workflow-> Universal worklist - Administration, however it looks like the display text are missing.
For example, the button text -
approve shows as 'com.sap.pct.srm.core.action.approve'
reject shows as 'com.sap.pct.srm.core.action.reject'
Displaydetail shows as 'com.sap.pct.srm.core.action.launchWD.WDCLFPOIF'
preview shows as 'com.sap.pct.srm.core.action.launchWD.print'
I also switched on support information to TRUE for all workiitems and in the table 'Supported Actions for this Item', I could see the above texts
Any idea where should I check and fix so that I get these display texts back.