SAP ABAP Table TAX_REF_DOC_KEY (Reference document key) is used by

• Class (20)
• Function Module (17)
• Program (8)
• Table (3)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Class	CL_XTAX_DB_MAPPER	Link between DB and external tax document	FYTX/ETXDC	APPL	SAP_FIN
2	Class	CL_XTAX_DB_MAPPER	Link between DB and external tax document	FYTX/ETXDC	APPL	SAP_FIN
3	Class	CL_XTAX_DB_MAPPER	Link between DB and external tax document	FYTX/ETXDC	APPL	SAP_FIN
4	Class	CL_XTAX_DOCUMENT	external tax document	FYTX/ETXDC	APPL	SAP_FIN
5	Class	CL_XTAX_DOCUMENT	external tax document	FYTX/ETXDC	APPL	SAP_FIN
6	Class	CL_XTAX_DOCUMENT	external tax document	FYTX/ETXDC	APPL	SAP_FIN
7	Class	CL_XTAX_DOCUMENT	external tax document	FYTX/ETXDC	APPL	SAP_FIN
8	Class	CL_XTAX_DOCUMENT	external tax document	FYTX/ETXDC	APPL	SAP_FIN
9	Class	CL_XTAX_DOCUMENT	external tax document	FYTX/ETXDC	APPL	SAP_FIN
10	Class	CL_XTAX_DOCUMENT	external tax document	FYTX/ETXDC	APPL	SAP_FIN
11	Class	CL_XTAX_DOCUMENT	external tax document	FYTX/ETXDC	APPL	SAP_FIN
12	Class	CL_XTAX_DOCUMENT	external tax document	FYTX/ETXDC	APPL	SAP_FIN
13	Class	CL_XTAX_DOCUMENT	external tax document	FYTX/ETXDC	APPL	SAP_FIN
14	Class	CL_XTAX_DOCUMENT	external tax document	FYTX/ETXDC	APPL	SAP_FIN
15	Class	CL_XTAX_DOCUMENT	external tax document	FYTX/ETXDC	APPL	SAP_FIN
16	Class	CL_XTAX_DOCUMENT	external tax document	FYTX/ETXDC	APPL	SAP_FIN
17	Class	CL_XTAX_DOCUMENT	external tax document	FYTX/ETXDC	APPL	SAP_FIN
18	Class	CL_XTAX_DOCUMENT	external tax document	FYTX/ETXDC	APPL	SAP_FIN
19	Class	CL_XTAX_RULES_POSTING	Rules for posting an external tax document	FYTX/ETXDC	APPL	SAP_FIN
20	Class	CL_XTAX_RULES_POSTING	Rules for posting an external tax document	FYTX/ETXDC	APPL	SAP_FIN