Documentation

Opening an account, signing in with a code sent to your email and the first steps — from sign-up to your first document.

How to write to us from the application (Help → Chat), when we reply, how the reply arrives and what is kept.

The partner list (customers and suppliers) — automatic completion by PIB from the NBS register, checks in the government registers and the flags for SEF and e-delivery notes.

The item list — prices with and without VAT and in foreign currency (converted at the NBS rate), purchase price with a history per supplier and stock levels.

Quote, customer purchase order, proforma invoice, invoice, advance invoice, delivery note and credit note — how they are created, turned into one another and sent with attachments.

Saving an unfinished document without a number, and setting up the numbering for each document type.

Sending the PDF to the customer at several addresses with a copy (Cc), the company signature with logo, and protection against sending twice.

A subsequent reduction of an issued invoice — the mandatory link to the invoice, VAT rules and the customer’s confirmation.

An internal order for a job — description, material, technicians and times; it takes material off the inventory, the customer can sign it on your phone, and an invoice is made from it.

Who did what with the document, and when — creation, edits, email sendings and SEF/SEO events on a single timeline.

A register of fixed assets and low-value items, depreciation runs, an inventory list and an asset card.

Payroll runs, payslips, the payroll summary and the PPP-PD payroll tax return (XML for ePorezi).

Service contracts and author’s fees — calculation of tax and contributions, a calculation sheet for the recipient and the PPP-PD payroll tax return (XML for ePorezi).

Importing sick notes from the eBolovanje – Poslodavac portal, sick-leave lines in the payroll run, PPP-PD by income type code, the certificate of earnings for RFZO (XML) and the claim deadline.

Travel orders — issuing, per diems by the statutory rule (domestic and abroad with a split at the border), expense settlement in several currencies and a PDF for the accountant.

Documents in EUR/USD/CHF with a bilingual PDF, the NBS exchange rate and a VAT note for exports.

Connecting to SEF with an API key, sending invoices, advance invoices and credit notes, registration in the CRF for public-sector customers and status tracking.

Fetching incoming e-invoices, approving and rejecting within the legal deadline, attachments, the original XML, the paid marker, manual entry of invoices from suppliers who are not on SEF, fiscal receipts, VAT without the right to deduct and payment in cash.

The line items of an approved received invoice become items in the item list with one click — with the purchase price, the supplier and a stock-in to inventory.

The VAT return for the tax period from the documents in duplo, the preliminary VAT return (PPP PDV) from SEF line by line and the individual VAT record for foreign suppliers’ invoices (reverse-charge VAT).

Electronic delivery notes via the SEO system — dispatch methods, sending with built-in validation, statuses and the customer’s goods receipt.

Received delivery notes from suppliers, confirmation of the physical receipt of goods and the electronic goods receipt with quantities per line item.

Importing PDF and XML statements and automatic matching — customers’ payments mark your invoices as paid, and your payments mark received invoices.

Operational inventory records — stock in from received invoices, stock out by issuing a delivery note or an invoice, the Inventory page with the inventory value and a stocktake.

What the Accounting add-on (beta) is, who sees it, how to try it free for 30 days and how it is paid for with your subscription.

The system chart of accounts (Rulebook 89/2020), your sub-accounts and the accounts the programme uses when posting automatically.

How journal entries arise from issued invoices, received invoices and bank statements, what is posted to which accounts and what happens on an edit or a reversal.

The accountant’s workflow over automatic journal entries — what is unreviewed, what awaits allocation from the suspense account and what has not been posted.

How much a customer owes you and how much you owe a supplier — balances, the ledger by account for a period and open items with days overdue.

A partner’s statement of open items as at a chosen date — a PDF for printing and sending by email directly to the partner.

The books of the Accounting add-on — trial balance (summary of the general ledger), general ledger, the ledger of every account and the journal, all with PDF output for the accountant.

A balance sheet as at any date, an income statement for any period and a statistical report for the year, compiled from posted journal entries in the layout of the APR forms (in thousands of dinars, with AOP codes; manual overrides of the statistical report cells) — a PDF to copy into the APR application.

How the financial year is closed in duplo — exchange differences at 31 December, closing entries for classes 5 and 6 with income tax, closing the year and opening the next (the result into earlier years) — all as journal entries that can be undone.

Company details for the document header, bank accounts, logo, VAT status, SEF/SEO keys, numbering, email signature and export of all data to XML.

Inviting colleagues to the company, roles, removing a member and working in several companies.

How you export all company data to XML, how a company or a user account is permanently deleted, what remains and why.

The 30-day trial, payment by proforma invoice in dinars, changing plans and what happens on expiry.

How an accountant or agency runs clients’ companies under one subscription, how to link up with a client who pays for duplo themselves, who may do what and how a company is taken over.

The income ledger for flat-rate taxpayers — keeps itself from issued invoices, with a PDF form.

Sign-in without a password, isolation of data per company, encryption of API keys, infrastructure with SOC 2 certificates and where the data is stored.

Quick answers — contacting support, the sign-in code not arriving, the programme language, editing a sent document, numbering when switching from another programme, whether duplo is an e-archive and more.