How can I submit purchase invoices to Envoice? You can submit an invoice to your Envoice account in multiple ways. No matter which option you choose, our data extraction will read out the data for you. submit by email via mobile app upload from your computer For more information on each of these submission methods, please click the links above. Related articles How should I setup my email to receive supplier invoices? How to create expense report? How to set up expense categories? How to use tracking categories?