If you are unable to void a work order it could be because the work order has already been invoiced. You must void the invoice before you can void the work order.
1. Click on the 'Invoiced' link to open the invoice form.
3. Void the invoice.
4. Reopen the work order - the status should now show as 'Completed'.
5. Click on the 'Open' button at the top of the window.
6. The status should now show as 'Open' and you should be able to successfully void the work order.
*Note: work orders with 'Paid' time sheets cannot be voided.