---
title: AADE connections
description: Connect myDATA and the AADE Business Registry securely.
category: AADE
order: 1
categoryOrder: 95
sourceVersion: Climenos 1.4.12 / Free 1.0.88
---

# AADE connections

**Settings → AADE Connections** brings together the myDATA REST API and AADE Business Registry connections. Credentials are encrypted before storage. The green indicator means that a complete credential set is stored; it does not by itself prove that AADE has accepted a live request.

## myDATA invoice synchronization

Climenos reads issued revenue invoices through the official AADE APIs, follows incremental MARK values and handles pagination and cancellations. Imported documents are matched to customers by VAT number and appear in **Documents & Files → Invoice History**.

From Invoice History you can:

- synchronize new documents without leaving the customer record;
- link an invoice or receipt to an eligible service or support payment;
- optionally confirm the payment while linking;
- store the official PDF in the protected customer folder;
- rename, download or email the stored document;
- see whether the document has already been sent.

Duplicate MARK/payment assignments are blocked, and imported entries already represented by a matching stored document are hidden.

## Business Registry lookup

Enter the special AADE credentials in the Tax Registry section. From a customer Tax Details form, look up a VAT number to retrieve the available registered business information. Review the returned fields before saving them to the customer.

{% callout type="warning" title="Treat diagnostics as temporary" %}
Privacy-safe diagnostics and one-use SOAP/XML capture are intended for troubleshooting. Download only when support needs the file, then clear it from the server.
{% /callout %}

## Contextual connection guides

Use the question-mark icon next to each connection title for its video and step-by-step guide. Videos load only when the guide opens, and the useful-links column points to the relevant official AADE resources.

Clearing myDATA credentials also disables its automatic synchronization schedule. Clearing Tax Registry credentials affects only registry lookups.