Note: For error handling and troubleshooting, see Orders v2 errors.Patchable attributes or objects: For more information about processing payments, see checkout or multiparty checkout. If you omit this value with an order that contains only one purchase unit, PayPal sets the value to default which enables you to use the path: Merchants and partners can add Level 2 and 3 data to payments to reduce risk and payment processing costs.
To make an update, you must provide a reference_id. You cannot update an order with the COMPLETED status. Updates an order with a CREATED or APPROVED status.
