In the Invoice module, click on the option "Credit selected invoice".
Specify whether the details of the invoice should be unlocked for possible later invoicing or not.
There is also an option to specify a reason for the credit invoice in the "Reason for credit invoice" field. The available reasons are set up under Administration - Accounting - Credit invoice reason.
There is also a comment field where additional information about the credit invoice can be provided.
A credit invoice corresponding to the entire amount of the debit invoice is created, and the Credit Invoice column is automatically marked (cannot be manually specified).
If the entire amount is to be credited, the draft is ready.
If only parts of the amount are to be credited, adjust the entries in the invoice lines so that only those to be included in the credit invoice remain. The sum of a credit must be a negative amount.
Manual Credit Invoice
Manual credit invoices are created through the "Manual credit invoice" option.
In the invoice lines, items are added in the same way as a debit invoice.
Note: For a manual credit invoice, a negative amount or a negative quantity must be manually specified for the entries in the invoice lines. The sum of a credit must be a negative amount.