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myDATA & AADE

myDATA integration and e-invoicing from the system you already use

We connect your e-shop, CRM or custom application to AADE myDATA, so revenue documents are issued and transmitted where your work already happens. No copying data between programs and no forgotten transmissions.
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Issue the document where the sale happens

In many businesses an order is recorded in the e-shop or an internal system, and then someone re-enters the same details into an invoicing program to issue the document and send it to myDATA. That costs time, introduces mistakes in VAT numbers and amounts, and leaves transmissions behind whenever things get busy.

We build the myDATA connection into your own system. The document is created from the order or transaction itself, with the right document type, series and VAT category, transmitted to AADE, and the MARK reference is stored next to the record. If something is rejected, you see it immediately with the error message, not at the end of the month.

We are not starting from scratch. We develop and run eFluper, an online invoicing platform that issues revenue documents and transmits them to myDATA, handling document types, series, VAT rules, customer records and the full transmission cycle. We bring the same experience to the integrations we build for clients. E-invoicing is becoming mandatory for more and more businesses in Greece; your accountant confirms what applies to you, and we take care of the technical side.

What's included

  • Review of your sales flow and the documents you issue
  • Document issuing directly from your e-shop or system
  • Transmission to myDATA with the MARK stored on each record
  • Handling of series, document types and VAT categories
  • Logging of rejections with the option to resend
  • Testing in the sandbox environment before going live
  • Hosting, monitoring and support in Greek
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What the myDATA connection does

The core pieces we set up so invoicing runs on its own and stays easy to check.

Documents from orders

Customer details, line items and VAT come straight from the order. Nobody types them in a second time.

Automatic transmission

The document is sent to myDATA when it is issued, and the MARK is saved together with the record.

Types and series

Invoices, retail receipts and credit notes with your own numbering series and the correct VAT categories.

Visible errors

If AADE rejects a document, it shows up with the error message and can be corrected and resent.

Transmission history

A full log of every submission: what was sent, when, and with what result, so your accountant has the picture.

Customer records

Your customers' details are kept in one place, so every following document comes out right in fewer steps.

How we work

From first call to live, in five steps

The same process whether it is a five-page website or a platform your whole company runs on. What changes is the depth of each step, not the order.

01
Discovery call
Thirty to sixty minutes on what you do, who your customers are and what the project has to achieve. We ask about the business problem first and the technology last. No charge, no commitment.
02
Proposal & fixed quote
A written document with the scope broken down line by line, the timeline, the price and what is explicitly not included. You know the full cost before you decide.
03
Design & structure
Wireframes and page structure first, then visual design. For applications, we map the data model and the workflow before writing a line of code — that is where projects are won or lost.
04
Development & review
We build in stages on a staging server you can access at any time. You review real screens as they are finished instead of waiting months for a reveal.
05
Launch & aftercare
Go-live, analytics and Search Console setup, training for your team, written documentation, and ongoing support. Most clients keep evolving their project with us for years.

FAQ

myDATA integration — common questions

Prefer to talk it through? Call us or send a short message — we reply within one business day.

+30 210 60 30 927

In most cases yes, whether it runs on WooCommerce or is custom built. We first look at how it is set up and which documents you issue, then propose the simplest way to make the connection.

E-invoicing is being extended to more businesses in Greece in stages, and the rules change over time. Your accountant confirms exactly what applies to you. We handle the technical part, so your system issues and transmits documents correctly.

eFluper is our own online invoicing platform. It issues revenue documents and transmits them to myDATA, and has Android and iOS apps. If you only need invoicing, it may be all you need. If you want documents issued from inside your own system, we build a custom connection drawing on the same experience.

The rejection is logged with its error message and listed for review. You fix the missing or incorrect detail and the document is resent, without having to hunt for what went wrong.

It depends on the system you have and the documents you issue. Custom web applications start from €1,200. For your case, after a short free call we send a written proposal with a fixed price.

We do. We host on our own managed servers with SSL, daily backups and monitoring, and when myDATA specifications change we adapt the connection as part of maintenance. Support is in Greek and we reply within one business day.

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Start a project

Connect your system to myDATA

Tell us how you issue documents today. After a short free call we send a written proposal with a fixed price.

Send us a message +30 210 60 30 927

We reply within one business day.