SAP ABAP Program WRINVE01 (Include WRINVE01) is using

• Class (1)
• Table/Structure Field (30)
• Function Module (2)
• Message Class (2)
• Message Number (2)
• Class Method (1)
• Table (3)

#	Object Type	Object Name	Object Description	Note
1	Table	SCREEN	Structure Description for the System Data Object SCREEN
2	Table	WFDAT_RAN	Range structure vendor billing docs. date
3	Table	WLF1_ERROR	Vendor Billing Document: Error Message Structure