To change a purchase order that has already been activated, the purchase order needs to be returned to the ‘Under construction’ status. This is done by making a new version of the order. When the order is activated again, the material allocations concerning purchase order lines that have been changed will be recalculated.
Press the New Version button, make the necessary changes and remember to activate the order again.
Making a new version will not succeed if the purchase order has open receipts. These must first either be closed or cancelled.
If there are lines that have been partly delivered in the purchase order, these lines will be split into two lines. The delivered quantity will be on a line that has status ‘Complete’. This line cannot be edited as the goods have already been delivered. The open quantity will be on a line that has status ‘Under construction’. This line is editable until the order is activated again.
If an activated purchase order has been cancelled and modified, the previous versions can still be found. Check the changes made to a purchase order by printing out the report ‘Purchase Order Changes’.