Here are the steps to reverse a receipt from PO or Non PO:

  1. Select "Return Non-Stock Items" from the PO or PO List Actions menu
  2. Enter the details as you want them removed.  This should be entered with the same 'incorrect' details that were received
  3. Re-Receive the items from the "Receive Inventory" option under the Actions menu.  The receipt can be Non PO if a revised PO is not required.  Alternatively, you can add a new item to the original PO and receive.