Cancelling a purchase order is used when an order has been sent to a supplier but is no longer required, should not proceed, or needs to be stopped before goods are received.
This article explains how to cancel a purchase order in Jiwa after it has been marked as Sent.
Cancelling purchase orders
Load your required purchase order into the Purchase Order Entry form
From the menu ribbon select Set Status To | Closed
When the purchase order status is changed to Closed the order quantities are reset to zero and the purchase order commitment journals are reversed