Create XRechnung and ZUGFeRD directly from SAP and send them by e-mail – in compliance with the law, efficiently and transparently:
From January 2025, e-invoicing will be mandatory for companies in Germany – in accordance with EU Directive 2014/55/EU. Our SAP-certified MailCenter solution supports you in not only meeting these legal requirements, but also in using them as an opportunity for digitalization. The MailCenter enables the seamless sending and receipt of electronic invoices in XRechnung, ZUGFeRD and PEPPOL format directly in SAP ECC or S/4HANA.
With the MailCenter, you can make your company fit for the digital future – transparent, paperless and sustainable.
We serve customers such as Siemens Healthineers, Dr. Oetker, Augustiner Bräu, Carl Zeiss, Sortimo, thyssenkrupp and many more…
“The fact that we can combine invoices and attachments within one e-mail is a major advantage of the solution for us.”
“Thanks to the dialog options, the MailCenter simultaneously ensures optimized accounts receivable management and clean, always up-to-date master data in our accounting.”
“We are also fulfilling a wish of many customers who want a format that can be processed automatically. ” They want to read the data directly into their systems. This is only possible to a limited extent with normal PDF files, as the data always has to be typed manually from there.”
Success Story
Relationship management by sending invoices.
Pneuhage Group | Read the success story >
Success Story
Advancing digitalization and meeting legal requirements.
DVV | Read the success story >
The MailCenter add-on for SAP enables you to process electronic invoices in XRechnung and ZUGFeRD format easily and in compliance with the law – both when sending and receiving. The e-invoices are structured, standardised and can be flexibly adapted to company-specific requirements.
With the MailCenter, you can generate electronic invoices directly in SAP – including all legally required information:
This ensures smooth exchange with customers, authorities and partners – without additional effort.
Customize your e-invoices flexibly: Whether additional fields for project numbers, internal references or specific free texts – the add-on can be tailored to your business processes. This creates more transparency and simplifies the allocation in accounting.
The integrated invoice receipt cockpit offers a central interface for processing incoming e-invoices. Supplier data, order reference and invoice details are automatically recognized and made available for further processing – for maximum efficiency and transparency in purchasing.
Example – SAP XRechnung
Example – SAP ZUGFeRD Invoice
Electronic invoice
Do you have any questions about the product? We would be happy to advise you in a personal conversation.
★★★★★
XRechnung and ZUGFeRD – “With the MailCenter, we are advancing digitization in our company.”
Wolfgang Scheffler, SAP Senior Consultant Logistics/Accounting (Project Management) | Duisburger Versorgungs- und Verkehrsgesellschaft mbH
An e-invoice (electronic invoice) is a digital invoice in a structured format that is created, sent and received electronically. It streamlines the invoicing process and reduces manual intervention.
E-invoices are created in XML or EDIFACT format and sent via electronic channels. The recipient can automatically read and process the document, which minimizes manual intervention and speeds up the entire process.
In common parlance, the term “e-invoice” refers to e-mails with attachments, pictorial representations and structured data formats.
The European Directive 204/55/EU of 16 April 2014 establishes the framework for electronic invoicing (e-invoicing) in public procurement. In § 4a, it defines the term electronic invoice as follows:
“An invoice is electronic if it is issued, transmitted and received in a structured electronic format and the format allows the invoice to be processed automatically and electronically.”
Various conditions are important when using. This includes the consent of the recipient of the invoice, human legibility,
authenticity of origin
, mandatory information (see paper invoice).
Read also => E-invoice
In order to help the acceptance and dissemination of electronic mail in everyday business, the legislator has reduced the requirements. This applies specifically to e-invoices. Transmission can be done in edi procedure. The qualified electronic signature is no longer required. This digital signature has not been necessary since 1 July 2011. Invoices can be sent electronically without the need to use a digital signature.
The abolition of electronic signaturehas have simplified the creation and use of e-invoicing for the biller and the recipient. Since then, the mailing of invoices has been steadily increasing. Of course, there are still customers who only accept invoices by paper. Nevertheless, electronically sent invoices are on the rise and are legally valid.
The terms refer to different formats for electronic invoices. Here is a brief description of the differences:
The PEPPOL network (Pan-European Public Procurement Online) enables the secure and legally compliant exchange of electronic invoices at the European level.
While sending by e-mail is still permitted in Germany, many countries rely on PEPPOL as a binding standard – especially in the public sector.
Via a certified PEPPOL access point, such as the MailCenter we offer, invoices can be sent automatically and directly from the SAP system. This makes PEPPOL the ideal solution
for companies with international business partners or public clients.
certified access point
Learn more about the integration on our
PEPPOL network page.
The Growth Opportunities Act makes electronic invoicing mandatory for B2B transactions in Germany from January 1, 2025 . Invoices must then be issued, transmitted and received in a structured format , for example as XRechnung or ZUGFeRD.
Paper invoices and simple PDFs without structured data are no longer considered e-invoices. Companies should adapt their processes at an early stage in order to remain compliant with the law and benefit from the advantages of digital invoice processing.
✔ Digital & automated invoicing processes
✔ Simple & user-friendly operation
✔ Fast implementation without additional hardware
✔ Meets the EN 16931 standard for B2B and B2G
Why munich enterprise software?
We have more than 15 years of experience in SAP-related output automation, SAP mail dispatch and e-invoice formats. With our SAP MailCenter and the integrated e-invoice extensions, you are well equipped for the digitization of your invoicing processes.
Dispatch
✔ Creation of XRechnung and ZUGFeRD invoices directly in SAP
✔ Visualization & control in the MailCenter Cockpit
✔ Shipping to customers and authorities
✔ Automatic archiving
Reception & Processing
✔ Automatic capture of incoming e-invoices
✔ Validation Service
✔ Forwarding to release
✔ Archiving in the SAP system
✔ Optional automatic booking
Software
Services
In addition to technical implementation, we offer business solutions, individual service options and sound advice.
Yes, incoming invoices can be posted automatically. If you use workflows in the DMS system (e.g. ELO), we integrate our solution in such a way that no additional workflows are required in other systems.
Our MailCenter add-on supports all current ZUGFeRD and XRechnung versions from ZUGFeRD 2.0 onwards with the latest versions (as of July 2025):
Thanks to continuous development and maintenance, our customers always stay up to date with the latest technology – in compliance with the law, proven in practice and future-proof.
SAP System Versions
Software
Quick setup of integration through standardized procedure
The initial setup takes place after the delivery of the application based on our standardized project roadmap.
Based on our predefined questionnaire, we determine your exact requirements. This information will be used to adapt the product to your needs. We have incorporated the experience gained from a variety of customer projects into this implementation guide. More specifically, the standardized approach speeds up implementation and conserve your resources.
After the import of the transports and the configuration in your test system, the briefing takes place. You will receive extensive documentation of the technical settings as well as a compilation of the application functions. During the test phase, the go-live and the operational phase, you will receive support from our team. With our development services, we provide regularly updated versions of the program. Every customer gets access to our customer portal. Here you will find all documents and documentation as well as the patches.
Electronic invoice
The solution for suppliers of contracting authorities.
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82194 Gröbenzell
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+49 89 2154 689 80
