A clients requirement popped up today that i solved previously using naught unsupported methods "SQL"....
The clients would like to effectively reopen a sales order to update one of the details.
This is not really possible once the order has been closed as all the fields are now read only.
This is the workaround......
Create the following On Demand workflow
Go to the closed order and select the on demand workflow
Once selected, refresh the workflow and you should be able to modify it.
Enjoy
Jonathan