SAP ABAP Data Element SERV_WEEKDAY (2-character abbreviation for weekday) is used by

• Table (7)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Table	ISUWA_SERVICE_OUTTAB - WEEKDAY	Output Structure of Planned Service Dates	EEWA	IS-U/CCS	IS-UT
2	Table	ISU_CAL_DATES - WEEKDAY	Screen Structure for Displaying Non-Workdays	EEWA	IS-U/CCS	IS-UT
3	Table	ISU_CAL_DATES - WEEKDAY_NEW	Screen Structure for Displaying Non-Workdays	EEWA	IS-U/CCS	IS-UT
4	Table	ISU_DATES_ALV - WEEKDAY	Output structure of changed service frequencies	EEWA	IS-U/CCS	IS-UT
5	Table	ISU_ROBJ_ALV - WEEKDAY	Structure for Field Catalog of Service Frequency	EEWA	IS-U/CCS	IS-UT
6	Table	ISU_ROBJ_DATES_ALV - WEEKDAY	Structure for maintaining exceptions to service frequencies	EEWA	IS-U/CCS	IS-UT
7	Table	ISU_ROUTE_SERVICES - WEEKDAY	Output Structure of Services for Route	EEWA	IS-U/CCS	IS-UT