https://community.sap.com/t5/application-development-and-automation-discussions/user-exit-mm06e005/m-p/8519552#M1655626 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>you can't throw messages during update. Please use EXIT_SAPMM06E_012 for data checks.</P><P></P><P>Regards,</P><P></P><P>Klaus</P></BODY></HTML> Mon, 23 Jan 2012 12:57:13 GMT Former Member 2012-01-23T12:57:13Z https://community.sap.com/t5/application-development-and-automation-discussions/user-exit-mm06e005/m-p/8519551#M1655625 <HTML><HEAD></HEAD><BODY><P>Hello experts,</P><P></P><P> I am using user exit MM06E005 i have added two fields at item level . now my requirent is at save event these two fields should not be empty . for that i have used 'EXIT_SAPMM06E_013' in the same exit and validate with error message but when this message fires after that i got one systm message "System error (error in method PO_POST)". Plz give some solutins.</P></BODY></HTML> Mon, 23 Jan 2012 12:20:52 GMT https://community.sap.com/t5/application-development-and-automation-discussions/user-exit-mm06e005/m-p/8519551#M1655625 Former Member 2012-01-23T12:20:52Z https://community.sap.com/t5/application-development-and-automation-discussions/user-exit-mm06e005/m-p/8519552#M1655626 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>you can't throw messages during update. Please use EXIT_SAPMM06E_012 for data checks.</P><P></P><P>Regards,</P><P></P><P>Klaus</P></BODY></HTML> Mon, 23 Jan 2012 12:57:13 GMT https://community.sap.com/t5/application-development-and-automation-discussions/user-exit-mm06e005/m-p/8519552#M1655626 Former Member 2012-01-23T12:57:13Z