ICPOs, Serial Number requirements, and how to update SN Status

We use ICPO quite a bit. The company we order from on the ICPO serial number tracks a few parts we do not. Because of this, we have a large number of unused serial numbers that are created due to the ICPO receipts process.

The serial number records all get stuck in the receiving bin, and I’d like to update the status on these serial numbers. What status should I choose? Or should I just mark them as scrapped?