# Invoice Delivery & X-Invoice ### Invoice Delivery & X-Invoice #### 1. Sending Invoices When sending your invoices, an **X-Invoice (X-Rechnung) in XML format** is created in addition to the usual PDF file. Both files are sent together by email to your clients. The X-Invoice is a standardized, machine-readable format developed especially for digital processing in accounting and administrative systems. When creating an order or preparing a draft invoice, additional files can be attached and sent together with the invoice. These will also be included in the invoice email. #### 2. Download in the Smart Portal Independently of the email delivery, you can download the invoice PDF or X-Invoice at any time from the invoice view in the Smart Portal. This gives you continuous access to all relevant invoice formats in one place. #### 3. Notes on Possible Error Messages As some clients currently do not yet have a so-called routing ID (Leitweg-ID), error messages may occur in certain cases when opening the X-Invoice.

Important: Even in these cases, the X-Invoice remains fully functional and can be processed without any issues in all common programs. The technical usability of the invoice is not affected.

#### 4. Legal Background By providing the X-Invoice, we comply with a total of nine relevant EU directives on electronic invoicing and the digitalization of business processes. This ensures that your invoices meet current European standards.