ERP integration. For businesses with high monthly volumes of PEPPOL documents (100s or more), this is often the only viable option. This the most scalable and automated solution that will free up your order processing and billing teams to do higher value work. It enables touchless receipt and delivery of POs into your ERP system and allows you to use automation to initiate order fulfillment and generate ASNs and invoices.
On premises: If your business has a strategy of handling EDI in-house and has already made the accompanying investments in staff, skills and software to do this, then you may only need a provider to handle connectivity with the PEPPOL network on your behalf.
Web portal. For low monthly volumes of PEPPOL documents (fewer than 50), or to get started quickly, a web interface solution is worth considering and sometimes is available free of charge. However, this option generally offers no integration and minimal support. Users must retype or copy and paste business document data from one system to another, which increases the chance for error and can introduce unacceptable risk.
Business tools. Small and medium enterprises (SMEs) often use a business tool, such as cloud accounting packages, to transact with trading partners. Many providers of these tools are adding PEPPOL connectivity so users can send and receive documents without needing additional tools. This option can allow you to derive more value from your existing investment if the solution can support your current and future volumes of PEPPOL transactions.