SAP ABAP Function Module WPOCC_CHECK_CHANGEABLE_PO_HEAD (Check Purchase Orders to Be Changed) is using

• Data Element (1)
• Table/Structure Field (8)
• Message Class (1)
• Message Number (1)
• Table (8)

#	Object Type	Object Name	Object Description	Note
1	Table	EKBE	History per Purchasing Document	SOURCE E_EKBE STRUCTURE EKBE OPTIONAL
2	Table	EKES	Vendor Confirmations	SOURCE E_EKES STRUCTURE EKES OPTIONAL
3	Table	EKKO	Purchasing Document Header	SOURCE I_EKKO STRUCTURE EKKO OPTIONAL
4	Table	EKKO	Purchasing Document Header
5	Table	T16FB	Release Indicator: Purchasing Document
6	Table	WPOCP_CHANGE_HEADER	Change PO Header Data	SOURCE CHANGING_HEADER STRUCTURE WPOCP_CHANGE_HEADER
7	Table	WPOCP_CHANGE_HEADER	Change PO Header Data
8	Table	WPOCP_ERROR_MESSAGE	Error Messages	SOURCE E_ERROR_MESSAGES STRUCTURE WPOCP_ERROR_MESSAGE OPTIONAL