SAP ABAP Function Module COM_HIERARCHY_CHECK_OW (Hierarchiedaten prüfen) is using

• Class (2)
• Data Element (5)
• Table/Structure Field (31)
• Function Module (6)
• Message Number (6)
• Class Method (2)
• Table (2)

#	Object Type	Object Name	Object Description	Note
1	Message Number	COM_HIERARCHY - 007	Required parameters missing during call of function module &1
2	Message Number	COM_HIERARCHY - 019	Standard scheme &1 does not exist
3	Message Number	COM_HIERARCHY - 020	Enter a numbering scheme; automatic number assignment is active
4	Message Number	COM_HIERARCHY - 021	'Automatic no. assignment' cannot be changed as categories exist
5	Message Number	COM_HIERARCHY - 022	'Multi Systems' cannot be deleted as categories exist with same ID
6	Message Number	COM_HIERARCHY - 023	Enter a root category for hierarchy &1