Billit Invoicing for myDATA

Billit Invoicing for myDATA automatically sends every order to Billit, which
issues the correct myDATA document — receipt or invoice — and transmits it
to the Greek tax authority (AADE). No manual data entry, no second system to
maintain.

What is myDATA? myDATA (“my Digital Accounting and Tax Application”) is
the official electronic bookkeeping platform of the Greek Independent
Authority for Public Revenue (AADE) — a public government service, not a
brand. Every business in Greece is legally required to transmit its sales
documents (receipts and invoices) to myDATA. This plugin is developed by
Billit and is not affiliated with or endorsed by AADE.

Who is this for? This plugin is useful only to businesses in Greece that
must report to myDATA. Because its audience is Greek, the merchant-facing
text in the plugin — and Billit’s terms and privacy policy — are written in
Greek.

Connect in a few clicks

Billit Invoicing for myDATA connects itself: click
“Σύνδεση με Billit” (“Connect with Billit”) in the plugin settings, approve
the connection from your Billit account, and you land back already
connected. No API keys to copy, no code.

Setup status at a glance

After you connect, the settings screen shows a status card: whether a myDATA
channel is active, whether both document types (receipt and invoice) exist,
GSIS credentials for VAT-number autofill, and the default myDATA
classification mapping. Each unmet item links straight to the Billit page
that fixes it. While you set up, you can keep the store in test mode —
documents are created, nothing is transmitted.

Orders are never silently lost

If something can’t be verified (e.g. a VAT number, a product, an amount),
the order isn’t lost or silently failed: a draft document is created in
Billit, you get a notification email, and the order shows “Πρόχειρο —
χρειάζεται έλεγχο” (“Draft — needs review”) with a direct link to finish
it.

What it automates

• Receipt or invoice depending on the customer’s choice at checkout, with
  the ΑΦΜ (VAT number) / ΔΟΥ (tax office) / company name / activity fields.
• Autofill of company details from the VAT number at checkout (never blocks
  checkout completion if the lookup is slow or fails).
• MARK and a document link on the order screen, with a “check status”
  button.
• Product sync to Billit whenever you save a product.

What you need

A Billit account (free to create during setup) and an active WooCommerce
8.9+ install. Nothing else.

External services

This plugin connects your store to Billit (https://billit.io), a
third-party invoicing service, to issue myDATA documents for your
WooCommerce orders and transmit them to the Greek tax authority (AADE). The
plugin is free; issuing documents requires a Billit account (a paid
service). Nothing is sent anywhere until you connect your store to Billit.

What is sent, and when

When an order reaches the status you configure (e.g. “Completed”), the
plugin sends that order to Billit so Billit can issue the document. The data
sent includes: the order number, totals and line items, and the customer’s
name, billing/shipping address, email and phone. For a business invoice it
also sends the VAT number (ΑΦΜ), tax office (ΔΟΥ), company name and activity.

If you enable the optional checkout VAT-number autofill, the ΑΦΜ typed at
checkout is sent to Billit to look up the public Greek business registry
(via GSIS/AADE) and fill in the company details.

The plugin also periodically fetches, from Billit, the status of your
account setup and of documents already issued. No data is sent to any
service other than Billit.

Terms and privacy

By connecting your store you agree to Billit’s terms, and your and your
customers’ data is processed by Billit as described in its privacy policy.
Please review both before connecting:

• Billit Terms of Use (in Greek): https://billit.io/terms
• Billit Privacy Policy (in Greek): https://billit.io/privacy