SAP ABAP Program CNV_20551_MAINTAIN_TSTRUC (Maintain the structure information for non-transparent fields) is using

• Table/Structure Field (50)
• Function Module (8)
• Message Class (2)
• Message Number (18)
• Program (6)
• Table (12)
• View (1)

#	Object Type	Object Name	Object Description	Note
1	View	TRDIR	System Table TRDIR