Shipping received a PO for the full number of items.  The items were received into QC, two line items of 50 qty. each.   Later it was determined they had only received half.  So a negative entry was done to cancel out one of the line items received.  That all shows in the transactions for the part.  In IN-A, the part shows 50 on purchase order, and 50 in QC.  But now they are unable to receive the other 50 parts that have come in.  It won't let them pull out of QC and into inventory.  It tells them there's none to receive.  How do we fix this?
 
Thanks,
 
Val