Before you submit invoices to eConnect, it's good to know the technical requirements your files need to meet. By following these guidelines, you prevent error messages and ensure your invoices are processed quickly and correctly.

eConnect processes the following file types:

ZUGFeRD/Factur-X (hybrid PDF with embedded XML) is also supported. The platform first attempts to process the embedded XML; if it is not valid, the PDF is processed via OCR.

Always submit one invoice per file. If an invoice has multiple pages, combine them into a single PDF file. The platform processes each file as a separate document. If a PDF contains multiple invoices, the conversion task will be rejected with the message "Document contains multiple documents".

Be aware that images in email signatures and company logos count as attachments. If your email client automatically includes a logo, it counts toward the maximum of 50 attachments and may affect classification. The system recognizes most logos automatically through the Detect API and filters them out, but in some cases a logo may incorrectly be included as a document.

When you send a single invoice with supporting documents (specifications, packing slips, timesheets) in the same email, the supporting documents are automatically attached to the invoice.

If you send multiple invoices along with attachments in a single email, the system cannot determine which attachment belongs to which invoice. In that case, send separate emails per invoice.

PDF files with encryption, digital signatures or other restrictions cannot be read by the OCR engine. These will be rejected with the message "Document protected". Remove the protection before submitting the file, or ask the supplier for an unprotected version.

PDF conversion (OCR recognition) is available for invoices addressed to all organizations available on the platform. It does not matter whether the recipient is a Dutch, Belgian or other foreign organization. The IDR supports over 200 languages for text recognition, so invoices in virtually any language are recognized.

Tip: not sure whether your file meets the requirements? Submit a test invoice and check whether it is processed correctly. If there's an error, you will receive a clear error message explaining the reason.

Want to know which error messages you might encounter? Read the overview of error messages when submitting by email.

• Error messages when submitting by email
• Submitting purchase invoices by email
• Submitting invoices as UBL files
• Submitting invoices from a scanner