At the moment there are a number of options to stop users being able to adjust discounts / fulfilment method etc on an order in SOP, but there is no possibility to stop them from adjusting a VAT rate. This then means that we have to run a number of exception reports to check if something has been adjusted incorrectly. There should be the ability to limit the opportunity for a user to change the VAT rate on an order line much like we can for discount or fulfilment method.
