Billing more than was received is a claim on the vendor, not a coding question. With the setting on, posting the invoice raises an AP debit note for the excess — and the difference never revalues stock.
Automatic Debit Note on Over-Billing
Where a vendor bills more than the goods receipt supports, the excess is now raised as an AP debit note when the invoice posts, rather than being coded away as a price or quantity difference. An over-billed line is a claim on the vendor, and a claim is a document.
The difference therefore does not move the stock valuation: the goods are worth what was received, and the excess is money to be recovered. Reversing the invoice takes the note with it.
Under-billing deliberately raises nothing. A note in the vendor’s favour is theirs to issue, not ours to invent.
Administrators: the behaviour is off until enabled per company in the AP posting configuration.