Agree with all Pradyp has said on this but also check, if you can also test the role SAP_EMPLOYEE_ESS_WDA_1 - if you look at this in PFCG -is there any BAdI implemation for PTRM_NEW_HRESS_MENU that could be hiding the application alias CallTravelRequest?
i) To test NWBC use transaction nwbc in SAPGUI.- All roles assigned to your user are shown.
ii)To test a role not assigned to your user - (if necessary ignore authority checks).
Maybe this helps also
Sally