ErrorsAll codes
LINE_NEGATIVE_PRICE
The unit price cannot be negative
Category: Invoices
Example response
When this error occurs, the API returns a JSON response with the following shape:
{
"type": "https://docs.beel.es/errors/LINE_NEGATIVE_PRICE",
"title": "LINE_NEGATIVE_PRICE",
"detail": "The unit price cannot be negative",
"instance": "/v1/<resource>",
"errors": [],
"success": false,
"error": {
"code": "LINE_NEGATIVE_PRICE",
"message": "The unit price cannot be negative",
"details": {}
},
"meta": {
"timestamp": "2026-05-21T10:00:00Z",
"request_id": "4bf92f3577b34da6a3ce929d0e0e4736"
}
}The type URI is stable and always resolves to this page.
Message
The unit price cannot be negative
El precio unitario no puede ser negativo
El preu unitari no pot ser negatiu
Send the request with Accept-Language: <es|en|ca> to receive the message in your preferred language.
Other errors in this category
BULK_PDF_ERROR
Error processing bulk PDF download
CANCELLATION_VIA_SPECIFIC_ENDPOINT
To cancel an invoice use the specific cancellation endpoint
CANNOT_DUPLICATE_DELETED_INVOICE
Cannot duplicate a deleted invoice
CLIENT_NOT_FOUND
Customer not found: {0}
DELETION_FAILED
Error deleting the invoice