SAP ABAP Function Module CAT_EXTERNAL_VARI_IMPORT (CATT - Import external variants) is using

• Class (3)
• Data Element (3)
• Table/Structure Field (17)
• Function Module (1)
• Class Method (2)
• Table (6)

#	Object Type	Object Name	Object Description	Note
1	Class	CL_ABAP_CHAR_UTILITIES	Utilities for Processing Characters
2	Class	CL_GUI_CFW	Control Framework Basic Class
3	Class	CL_GUI_FRONTEND_SERVICES	Frontend Services