Because querying a bill is slower than paying it. The payment run goes out on terms, the query is still open, and the money has already gone.
A debit note is a claim against a supplier — short delivery, damaged goods, an overcharge — raised against the bill and reducing the payable.
The debit note references the bill and the specific lines, with tax adjusted at the rate that applied. The payable reduces at once, so the next run pays the net amount.
Ninety units are billed and eighty-two arrive. The goods receipt records eighty-two, the debit note covers the difference, and the payment run settles the corrected figure.
It does not settle the argument. It records your position and keeps the cash in the account; the supplier still has to agree, and their credit note is what closes it.
It reduces the payables balance and the aging view, adjusts stock where goods are involved, and sits on the vendor record beside the bill it disputes.
No. You raise a debit note; the supplier issues a credit note. The two should end up matching.
Only the disputed value. The rest stays payable on terms.
Yes, where the receipt and the bill disagree.
Fourteen days, every module, no card. Or half an hour with someone who will run it on your own records and tell you where it does not help.