In release 4.22 you are able to adjust receipt cost even if you have shipped qty.

Pre-Reqs/Setup: This feature will need to be enabled - please reach out to support to turn this feature on for your company. Once enabled, you will have a new GL Transaction Mapping called Receipt Adjustment (Admin>Config Settings>GL Transaction Mappings). These will pull from previously set mappings, so you will only need to review the mappings.

This process is in the context of the user vouchering the receipt noticing the delta between the receipt amount and the inventory amount. You will do the receipt adjustment before finalizing the voucher.

• Create a Receipt Adjustment (Accounting>A/P>Receipt Adjustment).
• Set the warehouse location (must match the PO receipt warehouse)
• Enter PO / Receipt, click Add and then Submit;.
• Edit the Adjusted Cost field to reflect the total cost of the product. Then Click ‘Commit’ to close.
• Finalize the voucher by adding the new receipt amount to the voucher.
• You’ll notice we show you the on shelf qty (and value) adjusted, the built qty (and value) adjusted, and the shipped qty impacted.
• The original receipt will include the updated inv cost, but will link the user to the Adjustment ID.
• Note: The COGS will not be updated on the source invoice, we are just creating a ledger entry to account for the change.