# E-invoicing Provider Authorisation Failing on TaxisNet? Check Your AADE Contact Details

> TaxisNet returns a generic error that names nothing and links nowhere. The most common cause is that your contact details at AADE have never been confirmed. Here is the fifteen-second check, and the fix.
>
> AI-friendly Markdown version. HTML version: https://wrapp.ai/en/resources/taxisnet-provider-authorization-error
> EL version: https://wrapp.ai/el/resources/exousiodotisi-parochou-taxis-sfalma.md

When you connect Wrapp as your provider, the TaxisNet authorisation is granted in the first step of the process, using the TaxisNet credentials you enter in the application. When that step does not go through, TaxisNet returns **a single generic error message**: it does not say what is wrong, and it does not send you to the page that fixes it.

The most common cause has nothing to do with your provider or your credentials. It is that **your contact details at AADE have never been confirmed**. Checking costs fifteen seconds, so it goes first.

### Step 1: Check whether your contact details are confirmed

Sign in to myAADE and open the [«Στοιχεία Επικοινωνίας» (Contact Details) page](https://www1.aade.gr/saadeapps3/comregistry/#!/mhtrwoepikoinwnias). You can also reach it from the myAADE home screen, through the `Μητρώο & Επικοινωνία → Στοιχεία Επικοινωνίας` tile.

Scroll all the way down to **Section 3, «Επιβεβαίωση στοιχείων επικοινωνίας»**. There is a checkbox there and, underneath it, one line telling you where you stand:

- If it reads **«Έχετε επιβεβαιώσει τα στοιχεία επικοινωνίας στις»** followed by a date and time, your details are fine. The error has another cause, so go to Step 3 and try the authorisation by hand.
- If there is **no date**, the confirmation has never been done. That is your problem.

![Section 3 «Επιβεβαίωση στοιχείων επικοινωνίας» in myAADE, with the checkbox ticked and the date of the last confirmation printed underneath](https://wrapp.ai/assets/taxis_auth_3-161f2708cb9febf1b87066374461f2b53c32f78b02a48aa301831c7a95dd02ba.png)

### Step 2: Confirm the details

On the same page, **Section 2** shows your personal e-mail, your assistant e-mail, your mobile and your landline. If they are correct, **change nothing**. If something is wrong or missing, fix it first with the matching change button. The mobile number and both e-mail addresses are verified with a six-digit code that AADE sends you.

Then go back to **Section 3**, tick the **«Πιστοποιώ την ακρίβεια των δηλούμενων στοιχείων»** box (I certify that the declared details are accurate) and confirm. The screen prints the new date and time straight away.

### Step 3: Grant the authorisation in TaxisNet again

With the details confirmed, the authorisation goes through. You can retry it from the application, or grant it directly in TaxisNet:

- Open the [«Νέα εξουσιοδότηση σε Πάροχο Ηλ. Τιμολόγησης» form](https://www1.gsis.gr/taxisnet/mytaxisnet/protected/grantEInvoiceProviderAuthorization.htm) (New authorisation to an e-invoicing provider) with your company TaxisNet credentials.
- In the `ΑΦΜ` field enter the **provider VAT number**, not your own. For Wrapp it is **801361782**. The `Σχόλια` comments field is optional.
- Press **Καταχώρηση εξουσιοδότησης** to submit.

![The «Νέα εξουσιοδότηση σε Πάροχο Ηλ. Τιμολόγησης» form in TaxisNet, with the provider VAT number filled into the ΑΦΜ field](https://wrapp.ai/assets/taxis_auth_2-3c8ababc3812f5389b34e69245783c230c5b50e778107a96ae2ed6de2a7fdadd.png)

The AADE screen still refers to **Α.1035/2020**. The provision in force today for the declaration through a provider is article 6 of **Α.1112/2025**. The ten-day deadline is the same in both.

### How you know it worked

Open [Διαχείριση εξουσιοδοτήσεων](https://www1.gsis.gr/taxisnet/mytaxisnet/protected/authorizations.htm) (Manage authorisations) and scroll to the **«Παρόχους Ηλεκτρονικής Τιμολόγησης»** section. You will see one row carrying the provider name and VAT number, status **Ενεργή** (active), and the date you granted it. Revocation, if you ever need it, happens from that same row.

![The «Παρόχους Ηλεκτρονικής Τιμολόγησης» section of TaxisNet authorization management, showing the provider row with status Ενεργή](https://wrapp.ai/assets/taxis_auth_1-fd0d80a6970a25d9131b9feb70b41c5eefe88b7d2e9bf48bcc81ee994f322bf6.png)

**What stays with you and what does not:** the authorisation is the half that falls to you. Accepting it from the provider side and filing the declaration itself with AADE are done by Wrapp. The authorisation does, however, **count as the declaration**, and it is due within **ten days** of signing the contract, under article 6 of A.1112/2025. That clock runs while the authorisation keeps failing.

For the whole process from the start, see [how to file the YPAHES provider declaration](/en/resources/ypahes-provider-declaration). For who files it and what happens if you already had an older one, see [who files the provider declaration on myDATA](/en/resources/provider-declaration-who-files-mydata). If you also invoice the public sector you need the [B2G provider declaration](/en/resources/b2g-provider-declaration) as well, and for the wider picture see [mandatory e-invoicing from 1/10/2026](/en/resources/mandatory-e-invoicing-greece-october-2026).

## Frequently asked questions

### Why does TaxisNet not tell me what is wrong?

The authorisation screen returns a single generic error message. It does not distinguish between causes and it offers no link to the page that resolves it. That is why the contact details check comes first: it costs fifteen seconds and it covers the most common cause.

### How do I know whether my contact details are already confirmed?

Section 3 of the «Στοιχεία Επικοινωνίας» page in myAADE. If they are confirmed, the screen prints «Έχετε επιβεβαιώσει τα στοιχεία επικοινωνίας στις» followed by a date and time. No date means it has never been done.

### Which VAT number goes into the authorisation form?

The provider VAT number, not your own. For Wrapp it is 801361782. The form asks for that single field, plus an optional comment.

### Do I need to change my details, or only confirm them?

If your email and phone numbers are correct, you change nothing. You tick the «Πιστοποιώ την ακρίβεια των δηλούμενων στοιχείων» box and confirm. If something is wrong, correct it first, then confirm.

### I granted the authorisation by hand. Is there anything else to do?

No. The authorisation is the part that falls to you. Accepting it and filing the declaration with AADE are handled by Wrapp as your provider. All you need to see is the «Ενεργή» row in TaxisNet.

### Is there a deadline?

Yes. The authorisation counts as the declaration itself and is due within ten days of signing the contract with your provider, under article 6 of A.1112/2025. That clock runs while the authorisation keeps failing.

Need help? Contact us: https://wrapp.ai/contact