Message Number list used by SAP ABAP Class CL_APB_ISR_FORM_CUSTOMIZING (ISR form customizing)
SAP ABAP Class CL_APB_ISR_FORM_CUSTOMIZING (ISR form customizing) is using
# Object Type Object Name Object Description Note
     
1 Message Number  APB_ISR - 018 Action has been canceled
2 Message Number  APB_ISR - 021 Form & does not contain any new fields