When debit note should be issued?

A debit note should be issued when a buyer wants to formally request a reduction in the amount owed to a seller, typically due to issues such as overbilling, returned goods, or discrepancies in the invoice. It serves as a record of the adjustment being made and notifies the seller of the reason for the change. Issuing a debit note is essential for maintaining accurate financial records and ensuring both parties agree on the modifications to the transaction.