Webcast

Mandatory E-Invoicing by 2027:

Strategies for Efficient Implementation in SAP and Non-SAP Environments

Prepare for the future: Get ready for mandatory e-invoicing

Two Ways to Efficiently Transition to Digital Invoicing

How can the transition be carried out efficiently—without adding unnecessary complexity to the project—in both SAP and non-SAP environments?

With the mandatory implementation of electronic invoicing effective January 1, 2027, companies are facing a fundamental turning point. Structured formats such as XRechnung and ZUGFeRD are replacing PDFs and paper —and require adjustments to existing system infrastructures. But which implementation strategy makes more sense: an integrated, system-independent solution, or an add-on directly within the ERP system?

In this webcast, you’ll learn about two specific approaches that illustrate why, depending on the initial situation, a customized solution, a standard solution—or a hybrid approach—is the most efficient and sustainable option. An integrated, system-independent solution for electronic invoice data exchange, as well as an SAP add-on that allows you to create and send XRechnung and ZUGFeRD invoices directly from SAP.

Which adjustments are actually necessary in the existing system and process landscape—and which ones are often overestimated? The webcast will conclude with an open Q&A session with experts. The goal is for you to leave the meeting with a realistic assessment, clear recommendations for action, and a specific next step—not just another to-do list. If you don’t yet have a plan for implementing e-invoicing, this webcast is the perfect place to start.

E-Invoicing 2027: Why You Should Take Action Now

The requirement to use electronic invoicing is no longer a future option, but a clear legal development with a binding timeline. As of January 1, 2025, companies must be able to receive electronic invoices. In the coming years, there will be a gradual, mandatory transition to the use of structured, machine-readable formats such as XRechnung and ZUGFeRD.

Step-by-Step Introduction
by 2028

Starting in 2028 at the latest, electronic invoice exchange in the B2B sector will be mandatory for all companies. PDF and paper invoices are thus finally losing their relevance in business transactions.
But the real challenge lies not in the law—but in its implementation.
Companies must adapt their ERP and system landscapes—whether SAP or non-SAP—from a technical, organizational, and process perspective.
Those who start too late risk unnecessary project overhead, bottlenecks in IT resources, and rising implementation costs.
It affects not only IT, but also processes and collaboration.
E-invoicing involves: formats, delivery methods, validation, error handling, archiving, master data quality—and the collaboration between business departments, IT, and external partners. Make strategic decisions now instead of reacting later under time pressure!

Mandatory E-Invoicing—What Obligations Will Companies Face Starting in 2025?

The transitional provisions in place through the end of 2027 provide some flexibility—but do not delay the planning process. Companies with annual revenue exceeding 800,000 euros, in particular, should clarify the following at an early stage:

What might implementation look like in practice?
What adjustments are really necessary?
Is an expansion of the existing ERP system sufficient?
Or does an integrative, system-independent solution make more sense in the long run?

E-Invoicing 2027: Why You Should Take Action Now

The requirement to use electronic invoicing is no longer a future option, but a clear legal development with a binding timeline. As of January 1, 2025, companies must be able to receive electronic invoices. In the coming years, there will be a gradual, mandatory transition to the use of structured, machine-readable formats such as XRechnung and ZUGFeRD.

Step-by-Step Introduction by 2028

Starting in 2028 at the latest, electronic invoice exchange in the B2B sector will be mandatory for all companies. PDF and paper invoices are thus finally losing their relevance in business transactions.
But the real challenge lies not in the law—but in its implementation.
Companies must adapt their ERP and system landscapes—whether SAP or non-SAP—from a technical, organizational, and procedural standpoint.
Those who start too late risk unnecessary project effort, bottlenecks in IT resources, and rising implementation costs.
It affects not only IT, but also processes and collaboration.
E-invoicing involves: formats, delivery methods, validation, error handling, archiving, master data quality—and the collaboration between business units, IT, and external partners. If you start early, you can make decisions instead of just reacting.

Mandatory E-Invoicing—What Obligations Will Companies Face Starting in 2025?

The transitional provisions in place through the end of 2027 provide some flexibility—but do not delay the planning process. Companies with annual revenue exceeding 800,000 euros, in particular, should clarify the following at an early stage:

What might implementation look like in practice?
What adjustments are really necessary?
Is an expansion of the existing ERP system sufficient?
Or does an integrative, system-independent solution make more sense in the long run?

How to Tackle Challenges in a Future-Proof Way
Implications for Businesses

The transition to e-billing is not only a requirement for companies , but also a real opportunity to strategically modernize their entire outgoing billing process. Those who consistently adopt structured formats now can make processes significantly more transparent, reduce turnaround times, and permanently eliminate media discontinuities. At the same time, new opportunities for automation are emerging—from validation and data transfer to downstream systems to audit-proof archiving and improved data quality.

In many cases, e-billing also provides the ideal opportunity to review, consolidate, or modernize existing EDI and integration platforms to ensure they are ready for the future. The key is to choose a solution that remains scalable in the long term, keeps costs under control, and supports the company’s digital development —in line with a clear “make-or-buy” decision.

Opportunities and Potential

In this webcast, you’ll gain a practical overview of how companies can transition to e-invoicing efficiently and without launching a major project—regardless of whether your system landscape is based on SAP or not. This is not about theoretical requirements, but rather concrete challenges from real-world practice: from technical prerequisites and process issues to typical stumbling blocks related to format, distribution, and integration —as well as the close collaboration between business units and IT, and early and clear communication with business partners.

There is no one-size-fits-all answer: The right solution depends heavily on your system environment and your processes.

Our Speakers

CAS AG Support
Frank Austel, Industry Segment Manager, Retail, CAS AG

Frank Austel

Head of the Retail Division at CAS AG

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Selin Meier-Senger, Sales Manager, CAS Products-Retail

+49 172-24 89 353

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