Dear all

I have done some validation in save_document_prepare say whenever user changes item value thro va02 system has to thro error .

my logic below

message xxxx type I.leave to screen sy-dynnr .

problem is say user changes value from 100 to 150 , after info message , value not changed to 100 it is still 150 in table control .how to refresh this.
i have tried modifying xvbap but not working