Participant ID not found

Symptom

Error message indicates participant ID is not registered in PEPPOL network.

Solution

Confirm your PEPPOL registration is complete and active. Contact your Sovos account manager to confirm registration status.

Recipient not available

Symptom

Cannot send invoice to buyer. Recipient not found in PEPPOL network.

Solution

Confirm the buyer's participant ID is correct and they are registered in PEPPOL. The buyer must have an active access point to receive invoices.

Authentication failures

Symptom

HTTP 401 errors when calling Sovos API.

Solution

Confirm your API credentials are correct and you are using the proper authentication flow. Regenerate credentials if needed.

Invalid character in identifier (CodeInvalid 05)

Symptom

Document submission fails with error code CodeInvalid (05) referencing Sender.Identifier or Receiver.Identifier.

Solution

Check that identifiers in the SBDH has only allowed characters: letters (a-z, A-Z), numbers (0-9), and symbols period (.), hyphen (-), underscore (_), tilde (~). Remove any spaces or special characters. See PEPPOL participant identifiers for complete rules.

Invalid Belgian enterprise number (PEPPOL-COMMON-R043)