There are often times where an Open or "Problem" Invoice that is disputed/ unblocked results in follow up deduction. If there was an initial receiving issue causing your invoice payment to be blocked, its not uncommon for smaller issues to still exist from Lowe's point of view. Luckily in these cases, the open invoice can be disputed as well as the trailing new deduction associated to that invoice.

In both cases, when disputing a Proof of Delivery (POD) or Bill of Lading (BOL) is usually the best document to provide. For standard deductions like a shortage, that will almost always be the case. Occasionally, the instructions/ responses from Lowe's will have more specific requests of what needs to be provided.

An Open Invoice is usually a scenario where the retailer is past due on paying the original invoice for a purchase order. For Lowe's, they call these "problem invoices" because something is blocking them from paying on time whether its a receiving issue, EDI, or some other miscellaneous issue.

A shortage is very similar, except that it shows up after the invoice has been paid and reduces the total that was paid on the invoice. These are almost exclusively due to receiving errors.