Dhan API not able to modify super order

i am not able to modify super order via api. it is giving following error
2025-12-05 15:07:11] :outbox_tray: Full payload: {
“dhanClientId”: “1105324258”,
“orderId”: “332512057738671”,
“legName”: “TARGET_LEG”,
“targetPrice”: 864
}
[2025-12-05 15:07:11] :cross_mark: Target modify failed: 400 - {“errorType”:“Input_Exception”,“errorCode”:“DH-905”,“errorMessage”:“Missing required fields, bad values for parameters etc.”}
[2025-12-05 15:07:11] :cross_mark: Request payload was: {
“dhanClientId”: “1105324258”,
“orderId”: “332512057738671”,
“legName”: “TARGET_LEG”,
“targetPrice”: 864
}