Hi Jens
In case you use our system to generate the invoice, then the FI ID will be the same as the invoice number except that we add an identifier and a checksum as the last two digits for the FI ID.
You can read more about it on the e-copedia (in danish): http://wiki.e-conomic.dk/design-og-layout/ocr-linje
Please note that it differs from country to country how many digits are added. Sweden gets 3, DK gets 2.![]()
In case you use our system to generate the invoice, then the FI ID will be the same as the invoice number except that we add an identifier and a checksum as the last two digits for the FI ID.
You can read more about it on the e-copedia (in danish): http://wiki.e-conomic.dk/design-og-layout/ocr-linje
Please note that it differs from country to country how many digits are added. Sweden gets 3, DK gets 2.