Field help (REFORICOD) 

Parameter that is used to define, for this entry transaction, if the references for the original document (number and line of the receipt) must be:

hidden:

The fields do not appear in the entry screen but the values are assigned if the return arises from a receipt.

displayed:

The values are assigned to the fields and displayed if the return arises from a receipt picking. These values are not modifiable.

entered:

The values are assigned to the fields and displayed if the return arises from a receipt picking. These values can be entered directly without passing by the receipt picking.