On the Produmex > Cycle count menu there is an option to list and remove missing serial numbers.
Displays the filtering conditions for the items in the list. Select the serial number type on the combo box. The following items can be listed:
Filter the list by selecting an item. Only items having PMX serial numbers or SAP serial numbers with track location can be selected.
To remove serial numbers, select their line and click on the ‘Remove’ button.