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Paraşüt e-Arşiv and e-Fatura for OpenCart 3.x and 4.x — invoices from the order page

An invoice in Paraşüt from the OpenCart order page: e-Arşiv or e-Fatura, a VKN/TCKN field at checkout, the PDF on the order. Pro adds automatic invoices by status, a mail to the buyer, returns and cancelling. Check the settings with your accountant.

Pro · lifetime licence Staging copies are included. The more sites, the cheaper each one
Compatibility
OpenCart 4.0.2.x and 4.1.x (tested on 4.0.2.3 and 4.1.0.3), 3.0.x (tested on 3.0.5.0) · tested on PHP 8.1 and 8.3 · admin languages: English, Turkish
Version
v1.0.0 (OpenCart 4)
v1.0.0 (OpenCart 3.x)
Licence
a site + a staging copy, lifetime
Trial
7 days, no card, one per site
Updated
November 2026
Or all 394 Pro modules with All Access — 4 990 ₴ / year ≈ €98

What Free has,
and what Pro adds

The free version works with no time limit. Pro adds the rest of the features in the table.

Feature Free Pro
VKN/TCKN field at checkout with check digits ✔ ✔
Invoice by hand from the order page ✔ ✔
e-Arşiv or e-Fatura by the recipient lookup in Paraşüt ✔ ✔
Preview of lines and total before sending ✔ ✔
PDF on the order page ✔ ✔
Correct the buyer's number in the panel ✔ ✔
Invoice list in the Sales menu ✔ ✔
A lost answer makes no second invoice ✔ ✔
Automatic invoice by order status — ✔
PDF in a mail to the buyer — ✔
Return as a Paraşüt document — ✔
Cancel in Paraşüt — ✔
Payment recorded on an account or cash desk — ✔

What it looks like

VKN at checkout
A wrong number stops the form.
Panel before making the invoice
Buyer, lines and total on the order page.
The document made
Number, status and PDF in the panel.

Key points

What the buyer sees

At checkout the buyer can enter a VKN or TCKN and a tax office. A wrong number stops the form with a message under the field, an empty field passes.

What the admin gets

The order page gets a panel with the buyer, the lines and the total. A button makes the invoice after a confirmation, then the panel follows the document by itself and shows the PDF.

How much it costs

The base version is free. Pro costs 1 290 UAH, a one-time payment for a lifetime licence.

The trial starts when you ask

A fresh install is the free version, nothing switches on by itself. The “Try Pro for 7 days” button → e-mail → the key right in the window and by e-mail.

One key — a site and a staging copy

Moving the site? Unlink the licence on the old domain and activate it on the new one yourself. A staging copy (staging., dev.) works with the same key and does not take a site slot. For studios — keys for 5 or 25 sites, or unlimited.

Technical requirements

  • OpenCart 4.0.2.x and 4.1.x or 3.0.x · tested on PHP 8.1 and 8.3.
  • A Paraşüt account and API access (their support issues the client ID and secret).

Version history

v1.0.0 Current November 2026

For OpenCart 4.x and 3.x: invoice by hand, e-Arşiv and e-Fatura, VKN/TCKN, PDF; Pro adds automation, mail, returns, cancelling, payment.

Frequently bought with Paraşüt e-Arşiv and e-Fatura

All Access Need more? All modules (394) under one licence, new ones are added automatically. 4 990 ₴≈ €98 Learn more →

Full module description

Paraşüt e-Arşiv and e-Fatura links OpenCart to the Paraşüt accounting service. One panel on the order page makes the invoice, and the module picks e-Arşiv or e-Fatura by whether the buyer is an e-Fatura recipient.

An official document cannot simply be deleted, so check rates, exemptions and scenarios with your accountant before the first invoice.

What the buyer sees

At checkout the buyer can enter a VKN or TCKN and a tax office. A wrong number stops the form with a message under the field, an empty field passes. Nothing else changes for the buyer: the mail with the PDF comes only in Pro.

What the admin gets

The order page gets a panel with the buyer, the lines and the total. A button makes the invoice after a confirmation, then the panel follows the document by itself and shows the PDF. A Paraşüt error shows on screen and on the document row, next to buttons to retry or remove an unfinished attempt. If a product has 0% VAT without an exemption code, there is no button and the panel explains what to do.

How it works, step by step

  1. Ask Paraşüt for API access and enter the login data.
  2. Check the connection: the company fills in by itself.
  3. Create the buyer fields with a button.
  4. On the order page look at the total and make the invoice.
  5. The panel waits for the e-document and shows the PDF.

Under the hood

  • The Paraşüt password and secret are stored encrypted.
  • Requests are limited to 9 per 10 s, 429 and a dead token are handled.
  • Paraşüt may close the API to foreign addresses: the panel then shows a firewall message.
  • A return makes a refund document and no separate e-document: whether that is enough is your accountant’s call.
  • A logged-in OC4 customer sees the field in the account, not at checkout: the number can be entered in the panel.

How to install

  1. Extensions → Installer: upload the archive for your version and keep the file name.
  2. Extensions → Modules → Paraşüt e-Arşiv and e-Fatura → install button → Edit.
  3. Connection tab: enter the login data and check.
  4. Buyer tab: create the fields.
  5. Invoice tab: VAT mode, series, scenario and exemptions, together with your accountant.
  6. For Pro: paste the key or start the 7-day trial.

Questions
about the module

Didn't find the answer? Message us on Telegram and we'll reply within a business day.

@catcode_support Setup, compatibility, activation
Will the document be right by itself?

No. It passes on the order data, and tax decisions stay with you and your accountant.

Can I delete a created invoice?

An official document cannot be deleted: Pro has cancelling within the Paraşüt time limit.

Why is there no 2.3 build?

It was not built: the module is for OpenCart 3.x and 4.x.

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