SAP ABAP Data Element PERWEEK (Weekdays for Periodic Scheduling) is used by

• Class (1)
• Table (13)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Table	GRAC_S_SOD_BG_JOB - WEEKDAY	sod background job	GRAC_SOD	GRFD_MAIN	GRCFND_A
2	Table	GRFNTASKPLANGRP - WEEKDAY	Data for task plan group	GRFN_PLANNER	GRFD_MAIN	GRCFND_A
3	Table	GRFN_S_PLAN_PERIOD - WEEKDAY	plan period	GRFN_PLANNER	GRFD_MAIN	GRCFND_A
4	Table	GRFN_S_TASKPLAN - WEEKDAY	structure for task plan	GRFN_PLANNER	GRFD_MAIN	GRCFND_A
5	Table	GRFN_S_TASKPLANGRP_OVERVIEW - WEEKDAY	To Delete. overview structure for taskplan group	GRFN_ENTITY_API	GRFD_MAIN	GRCFND_A
6	Table	GRFN_S_TASKPLAN_GENERAL - WEEKDAY	structure for task plan	GRFN_PLANNER	GRFD_MAIN	GRCFND_A
7	Table	GRFN_S_TASKPLAN_GENERAL_API - WEEKDAY	Task plan (Used by GRFN_S_TASKPLAN_GRP_GEN_API only)	GRFN_ENTITY_API	GRFD_MAIN	GRCFND_A
8	Table	GRFN_S_TASKPLAN_GRP_GENERAL - WEEKDAY	Task plan group information	GRFN_PLANNER	GRFD_MAIN	GRCFND_A
9	Table	GRFN_S_TASKPLAN_GRP_GEN_API - WEEKDAY	Task plan group information	GRFN_ENTITY_API	GRFD_MAIN	GRCFND_A
10	Table	GRFN_S_UI_PLAN_DETAIL - WEEKDAY	Schedule detail	GRFN_PLANNER	GRFD_MAIN	GRCFND_A
11	Table	GRFN_S_UI_RECUR_DETAIL - WEEKDAY	The Recurrence detail for planner	GRFN_PLANNER	GRFD_MAIN	GRCFND_A
12	Table	SCMAPER - MONTH4	Screen Fields Periodic Scheduling	KPEP	ABA	SAP_ABA
13	Table	SCMAPER - YEAR4	Screen Fields Periodic Scheduling	KPEP	ABA	SAP_ABA