SAP ABAP Message Number MW - 255 (MW) is used by

• Program (2)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Program	GENARF01	Forms Checks Sel. Screen	MCW_AA_AT	PI_APPL	SAP_APPL
2	Program	UREGEF0A	Form routines beginning with A	WAUF	APPL	SAP_APPL