You can change the invoice number directly from the invoice creation screen on mobile. Do as follows: Remember that invoice numbering should always follow an incremental logic. Contact us if you have questionsRelated ArticlesHow to send invoices to my clients?How to send invoices via Peppol with Accountable 📤Sending imported invoices via Peppol 📤How can I create an e-invoice that the Finanzamt will accept?How to Create Invoices with an App - and does this work with Accountable?