Getting Error in Information box instead of status bar.
I have a requirement to while saving a purchase order we need to validate with condition and if condition get success need to display error message in status bar like 'Enter purchase requisition', So i implemented logic in customer exit - EXIT_SAPMM06E_013 and its working fine. But the error message displaying in information box instead of status bar.
First information box message showing like 'Enter purchase requisition'.
then second showing like 'System error (error in method PO_POST)'.
Anyone can suggest some good place my requirement should work properly.