To mark an invoice as paid:

1. Open the invoice from the list
2. Click "Mark as paid" in the invoice header; one click and the status updates to Paid, and a payment record is created for the full amount
3. Want to record the payment date, method, or a reference? Use "Record Payment" in the Payment section instead

Note: A draft invoice must be finalized before it can be marked paid or a payment can be recorded. Recording a payment on a draft used to create a numberless invoice with status Paid, which is no longer allowed. To record a payment on a draft, first send or finalize the invoice so it receives a number, then record the payment.

If an older invoice shows Paid but the payment card says no payment is registered, it was likely marked paid through an import or an earlier flow that did not create a payment record. Use "Record first payment" to add the payment and clear the message.