Generate credit note button appear only if you selected invoices in Sent or Sent manually statuses.
1. Navigate to Customers / Invoices page or Billing Periods / Period / Invoices page
2. Select invoice(s) in Sent and/or Sent Manually statuses. Create Credit Note button will appear on action buttons panel and action circle widget.
3. Click on Create Credit Note button, Credit Note generation process start and display operation progress page.
4. After credit note generated, process completion alert appears on the bell and click on Back to Invoices button to view generated Credit Notes.