PEPPOL and e-invoicing from your ERP - without changing your output setup
Stay compliant with changing e-invoicing requirements. Interform helps you generate, validate, and deliver structured electronic invoices in the required format and through the right channel, without adding complexity to your ERP.
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
E-invoicing
One compliant flow, from your ERP to any authority
InterformNG2 turns ERP data into structured e-invoices and distributes them by email, an access point or PDP, or a direct upload to the tax authority. It returns the legal record to your ERP and archive - and receives inbound too. Any ERP, any format, any environment.
Click any node in the diagram - the explanation updates in the panel beside the flow.
InterformNG2Third-party service - we integrate with it, we do not operate it
InterformNG2
Dedicated output platform
Any ERP · any format · any environment
Step 1 of 10Capture from any ERPInterformNG2 reads invoice data straight from your ERP - XML, JSON, spool, text or database. For many ERPs the transformation is ready out of the box; for a new or self-built system, we build the transformation and mapping. No ERP customisation.APIs & Integrations
Step 2 of 10Transform to the required formatTransformation maps your data into the format each market needs - UBL, Peppol BIS 3.0, XRechnung, FatturaPA, Factur-X, ZUGFeRD or the Polish KSeF FA schema.Transformation
Step 3 of 10Design the compliant documentMost invoices are structured XML - UBL, Peppol BIS 3.0, XRechnung, FatturaPA or KSeF FA. Only where a hybrid format is required does Advanced PDF embed that XML inside a readable PDF - Factur-X, ZUGFeRD.Intelligent DesignerAdvanced PDF
Step 4 of 10Validate and routeThe Workflow-Engine checks every invoice against the country ruleset and routes it to the right channel.Workflow-Engine
Step 5 of 10Distribute by the right channelThe E-Invoicing Module sends by the channel each case needs - email over SMTP, a third-party access point, PDP or broker over SFTP or API, or a direct upload to the tax authority where we support it. We integrate with those providers, we do not operate them.E-Invoicing Module
Step 6 of 10Deliver to the buyerYour buyer receives the structured XML through their access point or by email. A readable PDF is included only for hybrid formats such as Factur-X.E-Invoicing ModuleAdvanced PDF
Step 7 of 10Clear with the tax authorityMost countries clear through the third-party access point - Italy SDI, France Chorus Pro, Spain SII. Poland KSeF is the one we integrate with directly today, uploading the files with the certificate and tokens.E-Invoicing Module
Step 8 of 10Return the legal data to InterformThe authority returns confirmation data to InterformNG2 - the UIN, QR code and KSeF number - so each invoice carries its legal reference.Workflow-Engine
Step 9 of 10Write back and archiveInterformNG2 writes the legal ID and QR code back to your ERP, and writes both XML and PDF/A to any archive or DMS you run - IDM, next, d.3. We do not archive, we write to yours.APIs & Integrations
Step 10 of 10 - optionReceive inbound invoicesInterformNG2 receives too. Monitor an email inbox or an access point, validate incoming invoices, and hand them to your ERP or archive.Workflow-EngineAPIs & Integrations
1Capture from any ERP
InterformNG2
Dedicated output platform
Any ERP · any format · any environment
5Distribute by the right channel
6Deliver to the buyer
7Clear with the tax authority
8Return the legal data to Interform
9Write back and archive
10Receive inbound invoices
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
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
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.
