SAP ABAP Data Element MUSTFL (Flag: Mandatory entry) is used by

• Table (21)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Table	/SAPDMC/LSSTRUCS - MUSTFL	Structures and Their Relations	/SAPDMC/LSMW	BASIS	SAP_BASIS
2	Table	BDI_DDSYN - MUSTFL	Syntax Description for DDIC Structure and Basis Types	SALE	BASIS	SAP_BASIS
3	Table	CIMSYN - MUSTFL	Syntax Description for Extensions	SED	BASIS	SAP_BASIS
4	Table	DMC_IAPI11 - MUSTFL	DMC: Copy of EDI_IAPI11	CNV_DMCM	DMIS	DMIS
5	Table	DMC_SXDA2 - MUSTFL	DMC: Copy of SXDA2	CNV_DMCM	DMIS	DMIS
6	Table	E1SEGMH - MUSTFL	CA-EDI: Header data for segment transmission	SED	BASIS	SAP_BASIS
7	Table	E2SEGMH - MUSTFL	CA-EDI: Header data for segment transmission	SED	BASIS	SAP_BASIS
8	Table	E3SEGMH - MUSTFL	CA-EDI: Header data for segment transmission	SED	BASIS	SAP_BASIS
9	Table	EDISYN - MUSTFL	Syntax Description for Extended Basic Types	SED	BASIS	SAP_BASIS
10	Table	EDISYN30 - MUSTFL	EDISYN Structure in Release 3.x	SIDOC_METADATA	BASIS	SAP_BASIS
11	Table	EDI_IAPI02 - MUSTFL	API Structure for Syntax for IDoc Types and Basic Types	SED	BASIS	SAP_BASIS
12	Table	EDI_IAPI03 - MUSTFL	API Structure for Syntax for Extensionns	SED	BASIS	SAP_BASIS
13	Table	EDI_IAPI06 - MUSTFL	API Structure for IDoc Syntax in Syntax Check	SED	BASIS	SAP_BASIS
14	Table	EDI_IAPI11 - MUSTFL	CA-EDI: IDoc segments for IDoc API	SED	BASIS	SAP_BASIS
15	Table	EDSYN - MUSTFL	IDoc syntax after 3.0	SED	BASIS	SAP_BASIS
16	Table	IDOCSYN - MUSTFL	Syntax Description for Basic Types	SED	BASIS	SAP_BASIS
17	Table	IDXIDOCSYN - MUSTFL	IDoc Adapter IDoc Syntax Description for each Port	SIDOC_METADATA	BASIS	SAP_BASIS
18	Table	OIRHCHSSGDEFS - MUSTFL	Clearing House Settlement - Segment definitions (IS-Oil SSR)	OIR_H	IS-OIL	IS-OIL
19	Table	SED5ATTR - MUSTFL	Attributes for IDoc Segments	SED	BASIS	SAP_BASIS
20	Table	SXDA2 - MUSTFL	SAPDXfer: Structure Info for Data Transfer Object	S_DX_WB	BASIS	SAP_BASIS
21	Table	SYNATTR - MUSTFL	IDoc Development Syntax Attributes for one Segment	SED	BASIS	SAP_BASIS