Re-ship item with same serial no.

atwcc

Hi,
I face a problem here and hope anyone here can advise me. Many thanks in advance.

I created a Sales Order with say item A and quantity = 2. Item A has serial tracking activated.
Then I post ship item A with quantity = 1 and serial number = 100.
Next I do a Sales Return of item A with quantity = 1 and serial number = 100. Post ship and invoice to complete the sales return.
I go back to the same Sales Order and in Item Tracking Line, use 'Select Entries'. Here, you will be able to select serial numnber = 100
But when you exit the form, Navision give error 'Quantity (Base) must be -1, 0 or 1 when Serial No. is stated'

Anyone facing this issue before and is there any way to solve it?

Thanks