SAP ABAP Message Number W5 - 037 (W5) is used by

• Function Module (4)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Function Module	BAPI_PO_GETITEMS	List Purchase Order Items	MEW	APPL	SAP_APPL
2	Function Module	BAPI_PO_GETITEMSREL	List Purchase Orders for Release (Approval): New as of 4.0A	MEW	APPL	SAP_APPL
3	Function Module	BBP_PO_GETITEMS_EXT	Read Purchase Order	BBP_ADDON_46B	PI_APPL	SAP_APPL
4	Function Module	ME_PUR_DOCU_CHANGE	Ändern mehrerer Felder einer Bestellung via Funktionsbaustein	MEW	APPL	SAP_APPL