Peppol e-invoicing integration for your ERP or in-house system
We build the plugins, APIs, data mappings, validation logic, and workflows your existing systems need to send and receive e-invoices through Peppol.
We handle the technical integration work so your team can send, receive, and process e-invoices without manual workarounds. Built around your current systems, not around a new platform your team has to adopt.
Does this describe your company?
Administrative work doesn't need to be forever a headache. If you have these challenges, we've got you covered.
Operate in regions where e-invoicing is mandatory
Spend a lot of time on unnecessary administrative work around invoicing
Are looking to onboard customers or suppliers onto e-invoicing
Need help with invoice formats and compliance
Need to connect your system to Peppol or other networks
Want to integrate invoicing into your ERP system
Core services we provide
Services include, but not limited to, consultation, integration, setup, and ongoing support for e-invoicing.
Guidance on e-invoicing requirements, system design, and compliance.
Connect your system to Peppol or other e-invoice networks.
Configure your system to be able to send and receive e-invoices.
Automate sending, receiving, and processing of invoices.
Start now and get the benefits of
automated e-invoicing
Automated e-invoicing workflows save time, reduce errors, and ensure compliance.
API-based, file-based, or custom workflows — we adapt to your system and requirements.
We focus on getting the integration working end-to-end, not just providing guidelines.
We help ensure your invoices meet required formats like EN 16931 and Peppol BIS.
Reduce manual export/import steps with automated sending, receiving, and validation flows.
Get rid of manual workflow
Aim for better efficiency, fewer errors, and more time for work that actually matters.
- Export invoice data from ERP or store
- Convert or reformat into required structure (XML, etc.)
- Upload into another system or network portal
- Manually send or submit invoices
- Fix errors and resend if rejected
- Invoice created automatically from your system
- Required data collected once and reused
- Sent directly via Peppol or supported networks
- Optional auto-send when ready
- Minimal manual steps and fewer errors
Why businesses choose to work with us
We have expertise in software integration, e-invoicing standards, and workflow automation.
From invoice creation to delivery, validation, and response handling.
Mapping, validation rules, identifiers — the parts that usually break integrations.
No more exporting, converting, and re-uploading invoices.
Getting partners connected is part of the work — not an afterthought.
The goal is simple: make e-invoicing more straightforward and less manual.
Need help with
e-invoicing?
Send a message and we’ll get back to you.
Thanks — we’ll reply within 1 business day.
If you don’t hear back, email contact@elksend.com.
Frequently asked questions
Answers to common questions about sending Peppol e-invoices.
What is Peppol, and when do I need to send Peppol e-invoices?
Peppol is a shared e-invoicing framework: it defines common rules and document specifications, and it uses a network of certified service providers (Access Points) to securely deliver structured invoices between businesses. You typically need to send Peppol e-invoices when a B2B customer asks for it and provides their Peppol ID/endpoint, so the invoice can be received directly into their finance system in a standard format. In some countries it’s legally required in certain cases, for example, Belgium (public sector and B2B) and Denmark (public sector).
Can you integrate Peppol e-invoicing with our ERP or accounting software?
Yes, this is exactly what we do. We help connect existing ERP or accounting systems to Peppol, map invoice fields, handle format conversion where needed, and automate sending and receiving inside your current workflow.
What is EN 16931, and how does it relate to Peppol BIS Billing 3.0?
EN 16931 is the European standard that defines the semantic rules for compliant electronic invoices. Peppol BIS Billing 3.0 is a widely used Peppol implementation aligned with that standard and commonly referenced in European mandate and integration pages.
How can we check whether our customers or suppliers are already on Peppol?
You can check it through the official Peppol Directory https://directory.peppol.eu/. Search by company name, country, VAT number, registration number, GLN, or other known identifier.
Which e-invoice formats can you help us with?
We mainly work with Peppol BIS Billing 3.0, UBL 2.1, and EN 16931-compliant e-invoice formats. We can also help with country-specific formats such as XRechnung, ZUGFeRD / Factur-X, FatturaPA, Finvoice, TEAPPSXML, and Estonian e-arve XML, as well as mappings from ERP/API formats such as XML, JSON, CSV, EDIFACT, or ANSI X12.
Do you only work with Peppol, or can you support other e-invoicing networks too?
While Peppol is a common standard we work with, we also support integration with other e-invoicing networks e.g. Nemhandel.