PEPPOL and e-invoicing from your ERP - without changing your output setup

Electronic invoicing is no longer just about digital efficiency. It is increasingly driven by legal and regulatory requirements. Businesses must be able to issue and receive invoices in structured formats that meet country-specific standards and validation rules. These requirements differ across markets and continue to evolve.

For organisations operating internationally, this creates complexity. Invoice formats, delivery methods, and validation rules vary depending on the country, customer, or network. Managing these differences directly in the ERP increases complexity and requires ongoing maintenance.

Interform allows you to handle these requirements in one place, while keeping your ERP focused on core business processes. It helps ensure that invoice data is structured, validated, and delivered in line with these requirements.

How Interform fits in

Interform sits between your ERP and your delivery channels, handling format, validation, and routing. Invoice data is generated in your ERP. Interform then transforms, validates, and delivers the invoice based on the required format and routing rules. This gives you a consistent invoicing process, while supporting different compliance requirements.

• Convert invoice data into structured formats
• Validate invoices before sending
• Route invoices through the correct channels
• Handle country and customer-specific requirements
• Adapt to changes without modifying your ERP

Adding PEPPOL alongside legacy print and EDI

Most companies do not start e-invoicing from zero. Invoices already flow to print, PDF, email and EDI - and those channels stay. InterformNG2 adds PEPPOL and structured formats as one more delivery channel in the same workflow: the ERP produces invoice data once, and routing rules decide per customer whether it goes out as a PEPPOL BIS document, an EDI message, a PDF by email, or paper. Nothing in the existing print and EDI flows needs to be rebuilt.

What Interform delivers

Interform provides the components needed to support electronic invoicing across systems and markets.

• Generate formats such as PEPPOL, XRechnung, OIOUBL, ZUGFeRD, and Factur-X
• Transform ERP data into XML-based or hybrid invoice formats
• Validate invoices against format specifications before delivery
• Combine structured data with PDF output where required
• Route invoices automatically based on defined rules
• Integrate with ERP systems, eDelivery networks, and external platforms
• Manage multiple formats from a single solution

Benefits

• Support compliance across markets - meet invoicing requirements across countries, customers, and networks.
• Reduce rejection risk - validate invoices before sending to reduce errors, avoid rejections, and prevent delays.
• Keep ERP complexity under control - handle formats and delivery logic outside the ERP system.
• Work with one invoice process - use a single source of invoice data across all formats.
• Stay ready for change - adapt to new standards and requirements without redesigning your setup.

One setup, multiple compliance requirements

Organisations operating across several markets often face different invoicing requirements. One customer may require PEPPOL invoices. Another may require country-specific formats such as XRechnung or ZUGFeRD. In some cases, PDF invoices are still needed alongside structured data.

With Interform, invoice data is created once in the ERP. Interform converts the data into the required format, validates it against the relevant specifications, and sends it through the correct channel. This provides one consistent invoicing process, while supporting different compliance requirements across countries and customers.

E-invoicing from your ERP

SAP (S/4HANA, ECC, hybrid) - Add PEPPOL and structured invoice formats alongside your existing SAP output, without heavy SAP customisation. Invoice data leaves SAP once; InterformNG2 transforms and validates it. Output Management for SAP

Infor M3 and LN - The same M3 or LN output data that drives your documents today also drives your e-invoices. Compliant formats without modifying the ERP. Output Management for Infor

Microsoft Dynamics 365 - Add compliant e-invoicing without custom development in Dynamics 365. Output Management for Dynamics 365

IBM i / AS400 - InterformNG2 runs natively on IBM i and converts existing spool file output (SCS, AFPDS) into structured, validated e-invoice formats. Output Management for IBM i

How InterformNG2 works with PEPPOL access points

PEPPOL delivery runs through certified access points. InterformNG2 does not replace your access point - it prepares the invoice for it. Interform transforms ERP data into a valid PEPPOL BIS document, validates it against the format specification, and hands it to your access point or eDelivery network for transmission. The same setup routes non-PEPPOL customers to EDI, email or print. One invoice process, every channel.

Formats and markets

Format	Used in	Typical requirement
PEPPOL BIS	EU public sector, Belgium B2B, Nordics, growing EU-wide	Delivery via PEPPOL access point
OIOUBL	Denmark (NemHandel)	Danish public and B2B invoicing
XRechnung	Germany	Public sector, B2B mandate phasing in
ZUGFeRD	Germany	Hybrid PDF + XML invoice
Factur-X	France	Hybrid format in the French reform

Country mandates, formats and deadlines are covered in detail on our E-invoicing mandates page.

Frequently asked questions

Can InterformNG2 send PEPPOL invoices directly from SAP, Infor M3 or Dynamics 365?

Yes. Invoice data leaves the ERP once; InterformNG2 transforms it into the required format, validates it, and routes it to the right channel.

Do we need to change our ERP to add PEPPOL?

No. The ERP stays a data provider. Format and delivery logic live in InterformNG2, outside the ERP.

Does InterformNG2 replace a PEPPOL access point?

No. It prepares and validates the document, then hands it to your access point or eDelivery network for transmission.

Which e-invoicing formats does InterformNG2 support?

PEPPOL BIS, OIOUBL, XRechnung, ZUGFeRD and Factur-X.

Can we keep sending PDF invoices to customers who want them?

Yes. Routing rules decide per customer: PEPPOL, EDI, email PDF, or print - all from one invoice process.

E-invoicing requirements are changing

Managing them does not have to be complex. Interform supports the technical requirements of e-invoicing, while your organisation remains in control of regulatory interpretation. Interform helps you meet technical invoicing requirements while keeping your ERP setup simple and controlled.