E-invoicing manual

E-invoicing is the issuance of an invoice as a digitally signed XML document, filed on the official El Fatoora platform operated by Tunisie TradeNet (TTN). The signature guarantees authenticity (the issuer is properly identified), integrity (the invoice has not been altered) and non-repudiation (the issuer cannot deny having issued it).

TEIF (Tunisian Electronic Invoice Format) is the standardized XML format required by TTN for Tunisian e-invoices. Swifto generates it automatically from the invoice data — there is nothing extra for you to enter: the header (issuer, customer), the item lines, the taxes (VAT, stamp duty…), the excl./incl. VAT totals and the references are all placed in the right spot.

Swifto supports both types of signature offered by TunTrust. The choice is made once and for all in the company profile, depending on your invoice volume and your budget.

Setup is done once by an administrator, in Administration → Company profile. That is where you choose the signature type and enter the credentials.

Whatever the mode, the logical flow is the same: Swifto prepares the document, has it signed, files it, then retrieves the official validation.

flowchart LR
  A[Validated invoice] --> B[TEIF document
generation]
  B --> C{Signature
type?}
  C -->|DIGIGO| D[Authorization
by the holder on mobile]
  C -->|SEAL| E[Automatic company
seal]
  D --> F[Document signing]
  E --> F
  F --> G[Filing on El Fatoora TTN]
  G --> H{Validated by
TTN?}
  H -->|Yes| I[TTN reference
+ QR code]
  H -->|Not yet| J[Awaiting
validation]
  J -.retry.-> H

1. 1

   Open the invoice list

   Menu Sales → Invoices. The invoice must be validated (not a draft) and not yet signed.

2. 2

   Start the signing

   Click the row's signature icon. Swifto generates the TEIF and prepares the authorization request.

3. 3

   Authorize on your mobile

   You are redirected to DigiGO authorization: the certificate holder approves the signature from their phone (PIN code / app).

4. 4

   Filing & validation

   Swifto signs, files on El Fatoora and retrieves the result. On success, the invoice becomes Signed & validated with its reference and QR code.

1. 1

   Select the invoices

   In the invoice list, tick several validated and unsigned invoices.

2. 2

   Start "Sign invoices"

   The grouped button (visible in SEAL mode) triggers TEIF generation and signing by the company seal, with no manual authorization at all.

3. 3

   Grouped filing & tracking

   Swifto files the batch on El Fatoora and displays the result invoice by invoice: validated (reference + QR), pending, or in error (with the TTN reason).

Each invoice carries a signing status that evolves throughout the process:

Indicative matrix — depends on the profiles defined in your company.