To reverse a Purchase Ledger posting from a specification line, you will need to follow the same process, but post a credit through the Purchase Ledger and not an invoice. You have the following options:

You can either add a new line to the vehicle to post the credit to - ensure the line that you add to the vehicle has the same analysis code as the original line and the source code is set to P. You can then post credit using Batch Input option from Purchase Ledger to this newly created line.

If you want to Post the credit to the same line - to do this, you will have to remove the P.order / WIP no number from the line. This field can only be accessed by users with a priority 8 in Vehicle Stockbooks:


  • Load the vehicle in amend mode
  • Select the Cost Details tab
  • Double-click on the relevant line and you will be able to edit the details of the specification line
  • Set the P.order / WIP no field to 0
  • Select the OK button
  • Save the vehicle record

The line will then become available again when posting in the Purchase Ledger.