SAP ABAP Program RFBNUM00 (Gaps in Document Number Assignment) is using

• Class (5)
• Data Element (1)
• Table/Structure Field (60)
• Function Module (9)
• Message Class (1)
• Message Number (6)
• Class Method (4)
• Table (10)

#	Object Type	Object Name	Object Description	Note
1	Class Method	CL_SALV_FORM_CONTENT - SET	Set and Read Design Object
2	Class Method	CL_SALV_FORM_LAYOUT_FLOW - CREATE_TEXT	Flow Element in Design Object
3	Class Method	CL_SALV_FORM_LAYOUT_GRID - CONSTRUCTOR	Grid Element in Design Object
4	Class Method	CL_SALV_FORM_UIE_LAYOUT_GRID - ADD_ROW	CL_SALV_FORM_UIE_LAYOUT_GRID-ADD_ROW