Make a selection of sales invoices that you want to create credit notes for. See [Processing functions]. Some of the fields/buttons may differ depending on the functionality. The additional fields/buttons are described here.
Enter the invoice code for the credit invoices that will be created.
By selecting this check box, an invoice number will be assigned to the credit invoice when it is created.
Note: This check box is enabled only if you have selected the 'Ask during invoice entry' check box in the 'Reserve invoice number' field on the 'Invoice' tab in [Sales: File, Company settings, Sales settings].
Sales Manual > Contents > Entering correction invoices > Credit invoices > [Sales: Processes, Sales invoices, Create credit invoices]