SAP ABAP Table LOP_S_DOC_REF_KEY (Key of a document or reference) is used by

• Class (62)
• Function Module (3)
• Interface (1)
• PINF (2)
• Program (2)
• Table (2)
• TTYP (2)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	TTYP	LOP_TH_DOC_REF_KEY	LOP_TH_DOC_REF_KEY	LOOP	APPL	SAP_APPL
2	TTYP	LOP_TS_DOC_REF_KEY	LOP_TS_DOC_REF_KEY	LOOP	APPL	SAP_APPL