Voucher

What it is

A small business types every invoice into its bookkeeping by hand: the supplier, the amounts, the dates and the account numbers.

A person checks only the fields where the readers disagree or a rule fails, and the server refuses an invoice number it has approved before.

The parts

Every kind of document

A PDF’s words come from its own text, each with its place on the page. A scan or a phone photo is read with OCR in the browser, in Danish, English and German. An e-invoice is read element by element, with no model.

Two readers point, the code reads

The words go to two models at once. A model answers with the words that hold each field and never with a value, and the code reads the value from those words. A word a model names that is not on the page is dropped.

Sure, or checked by a person

A field is sure when two readers agree, the value is on the page and no rule fails: the sums of the European e-invoice standard, the check digits of the CVR number, the IBAN and the FIK code, and the order of the dates. Every other field is shown with its reasons and its words marked on the page, and a click on a word fills it.

It learns each supplier

When a person approves an invoice, the words in front of each value are kept for that supplier, and the next invoice from them is read with those words as a third reader. An approved invoice is written as a Peppol e-invoice.