{ "$schema": "https://json-schema.org/draft/2020-12/schema", "$id": "#/components/schemas/invoice_number", "title": "Invoice Number", "type": "object", "description": "The invoice number.", "properties": { "invoice_number": { "type": "string", "description": "The invoice number. If you omit this value, the default is the auto-incremented number from the last number.", "maxLength": 25, "readOnly": true } } }