When will Production Order will be invoiced ?

Production Order is invoiced when you run Adjust Cost-Item Entries batch job. Before Production Order can be invoiced, it must be Finished first. If Production Order is not invoiced, the cost incurred in the Production Order will remain in WIP Account. When the Production Order is invoiced, the Completely Invoiced field in item ledger entry will be checked and the value in WIP account will be reverse out.