E-invoicing as a feature in your software

Integrate e-invoicing into your own software without having to develop all the underlying infrastructure yourself.

From PDF to E-Invoicing

Does your software allow users to receive or send invoices? Make that process smarter with e-invoicing. Structured invoices can be automatically sent, received, and processed, while PDF remains available as a fallback option.

E-invoices are exchanged directly between systems. No email, no manual processing, and less waiting time between sending, receiving, and processing.

Invoice data is structured and ready for immediate further processing. This means less data entry, fewer errors, and fewer exceptions that need to be handled manually.

E-invoicing is becoming mandatory in more and more countries. With 4CEE, you can comply with existing and upcoming requirements without having to keep track of country-specific legislation, formats, and infrastructure yourself.

E-invoicing Becomes Mandatory

E-invoicing is becoming a requirement in more and more countries for organizations that send or process invoices. As a result, support for e-invoicing is also increasingly becoming a necessary feature of their software.

More and more countries are making e-invoicing mandatory for domestic B2B transactions. This is relevant for companies that have a legal entity in the country in question and are therefore subject to local invoicing regulations.

Belgium has already switched to mandatory B2B e-invoicing. France will begin a phased rollout in 2026, and Germany is further tightening the requirements for 2027 and 2028. For the Netherlands, see the latest news.

Starting July 1, 2030, ViDA will introduce digital reporting based on e-invoicing for cross-border B2B transactions within the EU. Read about the European requirements.

Your customers will soon need to be able not only to create or receive invoices, but also to exchange them electronically in accordance with applicable standards.

The software must support both domestic and cross-border e-invoicing, taking into account country- and transaction-specific differences in formats, networks, channels, and reporting.

E-invoicing by Exact, powered by 4CEE

Software developer Exact has been working with e-invoicing specialist 4CEE for years to provide e-invoicing capabilities for its small and medium-sized business (SMB) customers. Klumpers: “The technical requirements of the Peppol network call for dedicated specialists. In 4CEE, we’ve found that specialist, so we can be sure the process is in good hands.”

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Connect once,
connect with many

E-invoicing typically takes place via networks that connect organizations with large numbers of customers and suppliers. Instead of setting up a separate connection for each business partner, you connect to a network just once. Invoices and other business documents are then standardized and securely exchanged with all connected parties. Peppol is the best-known example of this.

Learn more about Peppol

Document exchange

We connect document flows via API, SFTP, email, Peppol, and other B2B networks from a single central platform.

Format Conversion

We automatically convert documents between UBL, Peppol BIS, XML, PDF, ERP formats, and customer-specific document standards.

Data Validation

Documents are automatically validated for required fields, standards, message structures, business rules, and network-specific requirements before they are delivered.

Peppol Access Point

Our Peppol Access Point securely sends and receives trade documents, validates messages, and automatically routes them to the correct recipient.

E-invoicing by Moneybird, powered by 4CEE

Moneybird focuses on entrepreneurs and helps them do their own bookkeeping easily and enjoyably, save time, and stay on top of their finances. Joost: “Then the question arose: should we build it ourselves or go with an API? That decision was made quickly. For email, we have a service provider that handles our email traffic for us, and we wanted the same for Peppol.”

Frequently Asked Questions

Why not develop e-invoicing on your own?

→ Go live faster

No certification processes, audits, or lengthy implementation phases. Integrations, certificates, and onboarding are available immediately.

→ Less risk

Security, certificate management, protocol handling, routing, and compliance are handled by a specialized provider, not by your product team.

→ Less management

Changes to standards, regulations, and network agreements—as well as monitoring and operational management—do not require ongoing development resources on your part.

How does 4CEE handle the global complexity of e-invoicing?

E-invoicing varies by country in terms of legislation, standards, networks, and reporting requirements. 4CEE combines its own technology with international e-invoicing networks and partners, including Pagero. This way, you don’t have to build and maintain that global infrastructure yourselves.

What do we need to develop ourselves?

You build the user experience within your own software and integrate it with 4CEE. We handle the data exchange, validation, conversion, routing, and connection to relevant e-invoicing networks behind the scenes.

Does the customer need to use a separate 4CEE platform for e-invoicing, or does everything stay within the supplier's software?

No. You integrate e-invoicing into your own software and user interface. 4CEE provides the technology and infrastructure behind the scenes.