Hello there, xxx_xcvi,
You can track the items you cannot sell or get refund for by creating an inventory adjustment for quantity. Here's how:
- Click Inventory at the top.
- Select Adjust Quantity/Value on Hand.
- Click the Adjustment Type drop-down, and select Quantity.
- Enter the date of the adjustment.
- Click the Adjustment Account drop-down, and choose the account to track inventory adjustments.
- Enter additional information as needed.
- Find the item you want to adjust.
- Save the adjustment.
Check this article for more information: Adjust inventory quantity or value.
Please let me know if you need additional help creating the adjustment.