Hello experts,
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.