A reader blog asked “What can I do if QB does not allow me to save changes to the Voided invoice? When I select “Save & Close” it warns “This transaction is a voided transaction. You cannot e-mail voided transactions”. I am unable to save the voided transaction as it will not close and save the changes
In this case, he had that invoice marked as “to be emailed”. In the lower left corner, un-check the box “to be e-mailed”, and that problem goes away.