Documentation

Getting started

Getting started

Updated 10/10/2026

Opening an account

You open an account on the Sign up page (the “Sign up” button on the website). You enter:

  • the company name (required — your organisation is created straight away),
  • your first and last name,
  • your email address — it is also your sign-in, with no password.

The trial lasts 30 days and does not ask for a card. During that time the programme works without restrictions.

Signing in without a password

duplo does not use passwords. Each time you sign in you enter your email, and we send you a six-digit code that is valid for 5 minutes. A session lasts 30 days per device, so in practice you enter a code rarely.

If the code does not arrive, check your junk (spam) folder. The code comes from the address duplo@email.repsalio.com.

First steps, in order

  1. Company settings — full legal name, address, PIB (tax ID), MB (company registration number), bank account. These details go in the header of every document. More: Company settings.
  2. Partners — add at least one customer to the list: Partners.
  3. Services and products — what you sell: Services and products.
  4. First document — a quote, proforma invoice or invoice: Issuing documents.

If the company sends e-invoices, connect SEF (the national e-invoicing system) as well: E-invoices via SEF.