Peppol problems do not always arise at the connection itself. Many organizations are formally connected to the network and meet legal requirements. For finance and administration teams, this means that invoices are now processed in a structured way within the ERP. Still, they experience Peppol problems in day-to-day processing.
Those Peppol problems are usually not in the transport of invoices, but in the way data, validation and internal workflows fit together. Peppol problems become visible once structured invoices actually have to go through the ERP and administration. Precisely because validation is stricter and data is explicitly captured, inconsistencies are more likely to show up. That makes Peppol problems not a technical failure, but a signal that the design of the process needs attention.
Peppol arranges transportation, not internal process design
Peppol provides a standardized network through which electronic invoices (in UBL format) are exchanged securely and consistently between organizations, via certified Access Points. European standard EN 16931 defines what data a structured invoice must legally contain; this is the basis of technical validation.
Peppol problems do not usually arise in this infrastructure. The network functions as intended. The technical connection stands.
Where Peppol problems do become apparent is in internal processing. Peppol regulates transport, but not how invoice data is booked into the ERP, how authorizations are set up or how exceptions are handled.
Where Peppol problems arise administratively
Structured e-invoices contain permanently defined data fields. When data is incomplete or inconsistent, for example missing VAT data or crooked ledger codes, this now shows up immediately in validation.
This does not change the technical connection, but the internal processing:
- A UBL invoice cannot be completed “by feel” like a PDF once could.
- Validation is largely automatic before or during processing, and errors are no longer camouflaged in the booking process.
- When the internal workflow assumes that manual checks occur later, blockages occur earlier in the process.
The result is administrative friction: processing does not flow naturally, exceptions pile up, and employees do manual work more often to correct discrepancies.
Roadmap: from connected to stable
- Chart the fallout
Analyze where invoices are failing and what error messages are returning. Many Peppol problems appear to have recurring patterns. By analyzing outages structurally, you prevent corrections from remaining incidental.
- Check the master data
Check VAT numbers, address information and references for consistency. In many cases, Peppol problems lie with incomplete or historically grown master data. Cleaning up prevents repeat validation errors.
- Review the mapping to the ERP
See if invoice fields align logically with your ERP structure. Peppol problems persist when the technical mapping works, but process-wise it is not correct. A logical translation of invoice data is essential for automated processing.
- Evaluate the validation rules
Not every internal control needs to be a roadblock. Peppol problems increase when validations are set up too strictly or, on the contrary, too loosely. Separate legal requirements from internal preferences and strike a balance.
- Establish a manageable exception process
Exceptions do not disappear completely. Peppol problems become manageable when it is clear who is responsible and how corrections are made. A clear process prevents daily manual correction work.
What Scan Sys can do in this regard
When the technical connection works but the administrative processing pinches, we offer:
- Analysis of failures and validation errors – visibility into what is technically and process-wise teetering.
- Control and optimization of mappings – this is how the Peppol invoice logically connects to your ERP.
- Review of workflow and authorization setup – restoring predictability to processes.
- Setting up manageable exception processes – so that deviations are no longer a daily burden.
Not a new link, but the logical alignment of data, validation and processing.
Frequently Asked Questions
Peppol is a standardized network through which electronic invoices are exchanged securely, quickly and consistently between organizations via certified Access Points.
Many EU countries, including Belgium and the Netherlands, will require structured e-invoicing for B2B transactions from 2026 to digitize processes and reduce compliance risks.
Yes, a Peppol invoice is a machine-readable UBL-XML file in accordance with EN 16931, intended for automatic processing, unlike a PDF invoice that requires human interpretation.
If mandatory fields are missing or do not meet standard rules, validation through Peppol can block or return the invoice. This prevents later errors in the accounting process but requires data to be correct in advance.
No, an invoice once sent through Peppol is a final document. Corrections are usually made by sending a credit memo and a new invoice according to established procedures.
