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
- 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.
- Partners — add at least one customer to the list: Partners.
- Services and products — what you sell: Services and products.
- 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.