Void TransactionAsk AIpost https://sandbox.nmi.com/api/v5/payments/{transaction_id}/voidVoid a transaction. This endpoint cancels a transaction that has not yet been settled.Path Paramstransaction_idstringrequiredThe transaction ID of the transaction to voidBody ParamspaymentstringenumThe type of payment. Default - creditcard. Required for ACHcheckcreditcardAllowed:checkcreditcardvoid_reasonstringenumConditionally Required if Transaction is EMV. Reason the EMV transaction is being voidedfrauduser_cancelicc_rejectedicc_card_removedicc_no_confirmationpos_timeoutAllowed:frauduser_cancelicc_rejectedicc_card_removedicc_no_confirmationpos_timeoutResponses 200Success 400Bad Request - Validation Error 401UnauthorizedUpdated about 2 months ago