SAP ABAP Function Module WLF_FLOW_TREE_PREPARE (Belegflußbaum vorbereiten) is using

• Class (7)
• Data Element (3)
• Table/Structure Field (18)
• Function Module (3)
• Interface (1)
• Message Class (1)
• Message Number (1)
• Class Method (6)
• Table (5)

#	Object Type	Object Name	Object Description	Note
1	Message Class	WS	Vendor Billing Document