Message Number list used by SAP ABAP Class CL_BROWSER_WPS (Planner Browser)
SAP ABAP Class CL_BROWSER_WPS (Planner Browser) is using
# Object Type Object Name Object Description Note
     
1 Message Number  DIWP1 - 250 At least one screen area must be active
2 Message Number  DIWP1 - 500 BAdI implementation & does not exist