Sounds like disaster in progress. Would you really change the delivered quantity, or the materials/quantities delivered in your delivery document, without considering what was actually shipped to your customer, because someone changed a quantity or added a new item? First of all, you should not be able to lower the quantity below what has already been delivered. Secondly, I would expect that your client/company invoiced immediately after delivery....what do you do about that? I think you do NOT want to try altering those delivery and invoice documents; in some cases the results might be considered fradulent.
