How do I test if my Peppol invoice arrives correctly?

You don’t need to send a test invoice to know whether your customer is reachable via Peppol. Sage Cloud Demat Invoicing checks this for you in advance, and after sending you can follow up on the status of every Peppol delivery.

⚠️ Never send a “test invoice” (for example for EUR 0.01) to a real customer. An invoice via Peppol is a real accounting document: it lands directly in your customer’s bookkeeping with a real invoice number. Moreover, after sending via Peppol the document is permanently locked; if you want to undo it, you have to create a credit note. So never test with real invoices.

Beforehand: check whether your customer is reachable

1. The endpoint check in the send window

Open the invoice, click Send and choose Via Peppol. The send window immediately checks your customer’s Peppol address:

• ✅ Peppol Endpoint found on the network: your customer is reachable, you can send with confidence
• ❌ Peppol Endpoint not found on the network: the customer may not be active on Peppol yet, or not yet found in the database
• ⚠️ Peppol check is currently unavailable: the check could not be performed; you can still try to send

The Peppol address is derived from the VAT number on the customer record by default. If you see ❌, first check whether the VAT number is filled in correctly.

2. The Peppol Directory

You can also look up a company in the public Peppol Directory: directory.peppol.eu. Search by name or VAT number.

ℹ️ The Peppol Directory only shows participants who have chosen to be listed. If your customer is not in it, they may still be reachable via Peppol; the endpoint check in the send window is the most reliable check.

After sending: following up on the status

After a Peppol delivery, you can see the delivery status on the document. To retrieve the most recent status, use the Check status button on the document. Two limitations apply:

• the status can be checked at most once per day per document
• documents older than 21 days can no longer be checked

Want to see at a glance whether any deliveries have failed? Filter your invoice list on Peppol send failed.

If a delivery has failed

1. Check the VAT number (and if applicable the Peppol Endpoint ID) on the customer record
2. Then send the document again via Peppol

If an invoice was sent but did not arrive correctly (for example, to a wrong endpoint), you can use the Resend button. Please note: resending can create a duplicate at the recipient, so only use this if the previous delivery did not arrive correctly or if the customer has a new endpoint. You have to provide a reason and confirm explicitly.

💡 Tip: if the invoice does not reach your customer via Peppol, you can deliver it as a PDF by email in the meantime while you investigate the problem. For Belgian VAT-registered companies, the structured e-invoice via Peppol remains the legal standard since 1 January 2026.