This PO proxy copy has already been converted to a PI. Can I edit it directly if the data was transcribed incorrectly?

1. This PO is a non-editable proxy copy, and a PI has already been issued for it. The copy cannot be edited directly. 2. Check the PO data in “Buyer information,” “Shipping information,” and “Item list (1).” 3. If you confirm a transcription error, follow the page instruction to “Void and transcribe again.” The current screen does not show where to access this action.