Partial Refund Status Inquiry by TxnIDCopy Pagepost https://api.fiuu.com/RMS/API/refundAPI/q_by_txn.phpQuery ParamsTxnIDnumberrequiredPG Transaction IDMerchantIDstringrequiredMerchant ID provided by PGSignaturestringrequiredThis is the data integrity protection hash string.Response 200Updated 7 months ago