Record that you issued the invoice through another channel.
1. Open the invoice
Go to Invoicing → Invoices and open the intended document. Confirm its customer and current status.
2. Review before issuing
Check the customer, dates, currency, tax, and total. Save and preview the invoice first.
3. Choose Mark as Sent
Open the invoice actions and select Mark as Sent when available. Read the confirmation before accepting.
4. Check History
Reopen History or the list and confirm the issued/sent state. Mark as Sent records the issue without emailing the customer and can affect accounting and reports.