Ajuda p/o campo (PNH1DAT) 

The return date is initialized by default to the current date. This date is then considered to be the transaction date for the stock transactions generated during return confirmation.
A check will be carried out with respect to the period file in order to ensure that the transactions can be carried out on this date (Stock closure concept).
In addition, it is possible to enter a return date that is later than the current date in order to prepare a return in advance.
This return cannot be validated while the return date is later than the current date.