Documentation

Accounting

IOS — statement of open items

Updated 07/09/2026

The screens of this module are currently only in Serbian (the owner’s decision for v1). Labels below are shown in Serbian with the English meaning in brackets.

IOS (izvod otvorenih stavki — statement of open items) is the document with which you reconcile balances with a partner — most often at the end of the year or before a dispute over payment. In duplo you get it from the partner ledger, as at any date.

How it is made

On the partner ledger choose the „na dan“ (as at) date and click „IOS (PDF)“. The programme takes the state of open items as at that date (payments after that date are not counted), so you can pull out an IOS as at 31.12. even in February.

The document contains your company’s logo and contact details (telephone and email from the settings), the details of both parties, a table of receivables (your invoices to the partner) and a table of payables (the partner’s invoices to you) in ledger form — Debit / Credit / Balance with totals — the balance as at the date, a note on advances if there are any, the text on reconciliation under the Accounting Act (Zakon o računovodstvu), a block for the partner’s reply (agree in full / dispute in full / dispute partially in the amount of, with reasons) and the signatures of the responsible persons with place and date. A partially paid invoice has the amount in one column, the payment in the other and the remainder in the balance; a payment without an invoice or an overpayment goes into the opposite column with a negative balance, so the total of the Balance column always agrees with the balance as at the date.

Sending by email

The „Pošalji IOS mejlom“ (Send IOS by email) button (super admin, administrator and accountant) opens a dialog with the partner’s address from the list (editable). The partner receives the PDF as an attachment; the reply goes to the address of the person who sent it, not to the programme’s address.

Notes

The IOS has no counter of its own — the date and the partner identify it unambiguously. Bulk sending to all partners at once is not yet available.