Here one scenario like
We have created a sales order VA01-->Pur. Order ME21N with current date i.e., 05.09.2008. System able to post perfectly and post MIRO, cutomer invoice and finally released to accounting.
Now, same sales order VA01-->Pur. Order ME21N with future date i.e., 05.09.2009. System threws error message "Account requires an assignment to a cost object".
Here my question is, why system is asking this assignment if i gave future date(05.09.2009) and why system is not asking if i gave current date(05.09.2008) ? remaining all are same except date
Looking forward your comments/thoughts