Frequently Asked Question
A Basic POS has to be able to issue the following invoices: Normal, Proforma, Copy, Training, in both types of transactions Sale and Refund (both with and without buyer identification).
An Advanced POS, on top of what the basic POS can issue, has to be able to also issue an Advance Sale and Advance Refund (both with and without buyer identification) in the proper manner as described in the technical documentation.
You can find additional information below:
https://www.purs.gov.rs/eFiskalizacija/tehnicki-vodic/7343/tehnicko-uputstvo-za-administrativni-i-tehnicki-pregled-funkcionalnosti-esir-a-ili-l-pfr-a-.html