Note that if you add a purchase order here, you are given the chance to include the charge for the additional item as an 'extra' to the quoted price of the job.
When the purchase order has been printed, the status of that line in committals will be found to have changed to ‘ordered’.  When goods or services are received from the supplier(s) - for an ad hoc order, you can, if you wish, change the status of the appropriate line to ‘received’ - though this is not compulsory.  (If you don't mark it as ‘received’, the item will continue to be listed as an outstanding purchase order.                        Ad-hoc orders can only be amended through the Committals Program prior to printing.  After printing they can be reviewed and potentially amended or deleted by selecting them in ‘Live purchase orders’ in the Purchase orders menu.