The invoices from your customers can have either of the six following statuses:
The invoice has been created either manually or through the API. It can still be edited and does not yet have an invoice number. Only once it's made final, the invoice can be sent by email, printed or the connected transaction can get created.
The invoice is generated but not yet paid.
The invoice has been paid.
Please note: if this invoice was paid within the last 8 weeks, the status could still change if the customer charges back the connected transaction.
4. Charged back
The payment has been charged back. This can have many reasons.
The connected transaction was deleted.
The legal period in which consumers can charge back the connected transaction has expired, so the invoice has reached its final paid status.