SAP ABAP Table E1BPLFHEAD (Communication structure: Header data, vendor billing doc.) is used by

• Function Module (3)
• Program (2)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Function Module	ALE_SINGLEREMUREQS_CREATE	BAPI -> IDoc: ALE_SINGLEREMUREQS_CREATE	WZRE	APPL	SAP_APPL
2	Function Module	IDOC_INPUT_SINGLREMURQS_CREATE	IDoc -> BAPI: IDOC_INPUT_SINGLREMURQS_CREATE	WZRE	APPL	SAP_APPL
3	Function Module	WRMA_REVAL_DOC_POST_FROM_IDOC	Baustein, der Umbewertungsbeleg aus IDOC bucht	WRMA_PI	PI_APPL	SAP_APPL