Virtual WH Handling Entries are related to the Warehouse Rcpt Document.
The field relationships are as below.
1 - Qty to Handle = Qty to Recieve of the WR Line.
2 - Expected Qty to Handle = Qty of expected receipt for the WR Line.
3 - Issued Qty to Handle = Qty of Issued ER on the WR Line.
4 - Posted Qty to Handle = Qty of the Posted on the WR Line (this is for handling processing the same WRL more than once, since the Posted can never be larger than the expected).
5 - Iss. Exp. Qty to Hndl = This field should be no longer used, please ignore.