URL providing access to the invoice. For example, `invoice_url` can be set to 'https://example.com/resource'.

URL providing access to the invoice label. For example, `label_url` can be set to 'https://example.com/resource'.

The date and time when the invoice was last updated. For example, `updated_date` can be set to '2024-11-01T10:00:00Z'.