SAP ABAP TYPE MPDB (MPDB) is using

• Table/Structure Field (55)
• Table (21)

#	Object Type	Object Name	Object Description	Note
1	Table	AFKO	Order Header Data PP Orders
2	Table	AFVGD	Order: Dialog table for Table AFVG (order operation)
3	Table	AUFK	Order master data
4	Table	CRHD	Work Center Header
5	Table	CYMP_OUTPUT_FIELDS	Display fields for work distribution at person level
6	Table	CYREFS	Dummy structure for reference structures
7	Table	KAKO	Capacity Header Segment
8	Table	KBED	Capacity Requirements Records
9	Table	KBEDD	Capacity requirements: dialog table for KBED
10	Table	KBEZ	Add. data for table KBED (for indiv. capacities/splits)
11	Table	KPER	Period Values for Workforce Planning
12	Table	OBJEC	Work Area for Database PCH
13	Table	PDWORK	Additional structure for workplaces in the PD order.
14	Table	PERIOD	Period definition
15	Table	PESCH	Capacity of Persons (accumulated over duration)
16	Table	PROJ	Project definition
17	Table	PRPS	WBS (Work Breakdown Structure) Element Master Data
18	Table	PRPS_R	Project Hierarchy Reporting Structure
19	Table	RCR01	View of Work Center from Task Lists
20	Table	RSTHIE	BRST structure of the hierarchy table
21	Table	VSKEY_INC	Version: PS version, version-related key fields