The ID of the Order Management System.
The product ID.
curl -L \ --url 'GetOMSWithdrawFees?OMSId=1&ProductId=1'
[ { "OMSId": 1, "AccountId": 0, "FeeId": 47, "FeeAmt": 1, "FeeCalcType": "Percentage", "IsActive": false, "ProductId": 1 } ]