Void a credit transaction via MerchantOrderIdput https://apisandbox.cieloecommerce.cielo.com.br/1/sales/OrderId/{MerchantOrderId}/voidCancel the total or partial amount of a credit transaction by providing the MerchantOrderId.Path ParamsMerchantOrderIdstringrequiredMerchantOrderIdQuery ParamsAmountint32Order Amount (to be sent in cents). Size: 15.Body ParamsReasonstringrequiredIndicates that the transaction was voided due to a fraud risk identified by the merchant. Possible value: "HighRisk". Size: 8. Required if the transaction is voided because there is a fraud risk. Valid for full or partial void. Warning: This parameter will be available as of 04/17/2026.HeadersMerchantIdstringrequiredDefaults to 8937bd5b-9796-494d-9fe5-f76b3e4da633Store identifier in API E-commerce Cielo. Size: 36 This documentation provides a default MerchantId to allow testing in the sandbox, but you can also provide the enabled MerchantId during the deployment process.MerchantKeystringrequiredDefaults to XKGHUBSBKIRXKAVPSKWLVXYCLVJUGTNZLIHPUSYVPublic Key for Double Authentication in API E-commerce Cielo. Size: 40. This documentation provides a default MerchantKey to allow testing in the sandbox, but you can also provide the enabled MerchantKey during the deployment process.RequestIdstringRequest Identifier, used when the merchant uses different servers for each GET/POST/PUT. Size: 36.Content-typestringDefaults to application/jsonapplication/jsonResponse 200200Updated 12 days ago