SAP ABAP Class CL_WRF_REF_DB_HEAD (Database Accesses WRF_REF_HEAD) is using

• Class (8)
• Data Element (5)
• Table/Structure Field (18)
• Function Module (1)
• Interface (5)
• Message Class (2)
• Message Number (2)
• Class Method (2)
• Table (16)

#	Object Type	Object Name	Object Description	Note
1	Message Number	WRF_REF - 013	There is no reference assignment for material &1/plant &2
2	Message Number	WRF_REF - 024	&4 Node of the article hierarchy could not be determined