Have you received or sent an e-invoice as an XML file and need to make a change? On the eConnect platform you can download the XML file, edit it and resubmit it. This is useful when you want to use an existing XML file as the basis for a new invoice, or when you need to make a technical correction.

Open the invoice in the Inbox or Outbox and click Download. You can choose between the XML file (the structured e-invoice data) or the PDF view. The XML file can be opened in a text editor or XML editor.

Open the XML file in a suitable editor. Pay attention to the following when making changes:

• Invoice number: change the invoice number to a new, unique number. Never send an invoice with the same invoice number as a previously sent invoice; the platform detects this as a duplicate.
• Invoice date: update the date to the current invoice date.
• Amounts: ensure all amounts and calculations are correct. The total amount must equal the sum of the invoice lines plus VAT.
• CustomizationID: do not remove or modify this field. It tells receiving systems which standard the invoice follows (NLCIUS, Peppol BIS Billing 3.0).

Send the edited XML file to the platform via one of these methods:

1. Email Receiver: send the file as an attachment to your trusted sender email address (your @trust.econnect.eu or @verkoopfacturen.econnect.eu address). The platform processes the file automatically.
2. Manual upload: if you have a software connection or API access, you can also submit the file through that channel.

After submission the invoice appears in your Outbox (for sales invoices) or Inbox (for purchase invoices). Check the invoice details before sending.

Want to check whether your edited XML is valid before submitting it? Use the free eConnect validator at econnect.eu/en/validator. The validator checks your file against the applicable UBL, Peppol BIS Billing and NLCIUS standards and provides clear error messages if something is wrong.

XML files in the old SI1.1 or SI1.2 format (SimpleInvoicing) may no longer be sent directly via the Peppol network. The current standards are SI2.0 (NLCIUS) and Peppol BIS Billing 3.0. eConnect can receive files in older formats and transform them to the current standard, provided the content meets the current rules. The long-term solution is to update your software package to the current standard.

Need help editing an XML file? Contact us via support.econnect.eu.

• Create and send an invoice
• Resend an invoice
• Sending errors and how to fix them