We have an old Purchase Order that calls for quantity ordered of 250. We received and invoiced 249 of them and we know we won’t ever receive the last 1. When I go into Navision to change the quantity to 249 it won’t let me.
If you do not need the order anymore, just go to the header and delete it then.
The system does not care if the order is open or released.
It will not let you delete the purchase order if there are any inconsistencies between received and invoiced quantities or any related Warehouse related lines exist.
If the Prepayment was 100%, after posting PCM you will need to post normal payment (through G/L Journal, as actual payment is done) + CM for difference, if less than 100% - then its more complicated and depends of amounts actually paid and difference in debt to Vendor, taking into consideration you didn/t receive full amount of goods.
Yes, it is possible with Partner license (other way exists, which I would NOT write here to popularize wrong approach and I would like to ask you, too, not to comment here how you did it).
However, don’t make this a habit, someday it will hit you back hard If you get your accountants used to such possibilities, they wouldn’t bother making errors in hope someone will come and hack them (errors, not accountants!) out.