Common Error Messages
Here are the error messages and their possible solutions:
1. VAT number of the account is invalid: Several checks are performed when sending an electronic invoice, including the validation of your business details. If you receive this error message, it means that the VAT number in your account is invalid. Update your business details via "Settings" > "Business Details".
2. The country ‘Belgium’ is invalid: When sending electronic invoices, the customer's address is validated. If the country is entered as text and the system cannot determine which country it is, this error message appears. Make sure the country is entered correctly in a format that the system recognizes.
3. file: [BR-27]-The Item net price (BT-146) shall NOT be negative: Invoice lines with a negative total are not allowed through PEPPOL, except for credit notes where all invoice lines must be negative. If you receive this error message, check your invoice lines and make sure they do not contain negative values unless it's for a credit note.