SAP ABAP Function Module DD_CNV_FIELD (DD: Add a converter flag) is using

• Data Element (6)
• Table/Structure Field (44)
• Function Module (5)
• Message Class (2)
• Message Number (2)
• Program (2)
• Table (22)
• View (5)

#	Object Type	Object Name	Object Description	Note
1	Message Class	D0	Machine-level ABAP/4 Dictionary texts (e.g. debugging)
2	Message Class	DT	Table activation (incl. indexes)