Connecting your business's myDATA
Updated 10 Nov 2026
- In AADE myDATA (REST API registration) create an API user for the business. You get a
user_idand asubscription key. - Business All-in-One → Company → myDATA settings → paste both values. They are stored encrypted.
- Press Test connection. If it succeeds, the first document read starts (a few minutes for one year).
Business All-in-One only reads. It does not transmit, characterise or change anything in your myDATA.
Refresh
Documents refresh automatically every few hours. Press Refresh now on the dashboard for an immediate update.
Revoking
You can delete the keys from Settings or disable the API user in myDATA at any time.
Not what you were looking for? Technical support team, led by Konstantinos Ntalaperas, +30 690 780 0984, or open a support request.