SAP ABAP Class CL_WB2_PO_CHANGE (Purchase Order: Change) is using

• Class (1)
• Data Element (6)
• Table/Structure Field (25)
• Function Module (3)
• Interface (2)
• Message Class (1)
• Message Number (2)
• Class Method (2)
• Table (6)

#	Object Type	Object Name	Object Description	Note
1	Table	SAPI_PO_HEADER	Step API: Header Data For Purchase Order
2	Table	SAPI_PO_HEADER_CTRL	Step API: Header Control For Purchase Order
3	Table	SAPI_RETURN	Step API: Return Messages
4	Table	WB2_BDC_CONTROL	TEW: Batch Input Control Data
5	Table	WB2_HEADS_AND_ITEMS	Header or Item
6	Table	WB2_PO_DATA	Purchase Order Data