eInvoice Croatia

In addition to the standard guidelines for issuing eInvoices, which you can see at:

1. Issuing an eInvoice
2. BizBox

Issuing an eInvoice to Croatian customers requires additional data: the partner's business unit code. Enter your partner's business unit code in the title field on the customer, in this format:
spe=XXXX, where XXXX is the business unit code

If the field is not visible on the customer, contact podpora@metakocka.si to enable partnerAddressTitleExtraParameters 

You can find the business unit code here:
https://eposlovanje.fina.hr/e-racun-javna-trazilica/

NOTE: if the business unit code is the same as the company's tax number, leave this field empty: