SAP ABAP Class CL_USMD_MESSAGE (Tools for message handling) is using

• Class (4)
• Data Element (1)
• Table/Structure Field (67)
• Message Class (1)
• Message Number (2)
• Class Method (6)
• Table (15)

#	Object Type	Object Name	Object Description	Note
1	Data Element	BOOLE_D	Data element for domain BOOLE: TRUE (='X') and FALSE (=' ')