scaleprocessworkorder rest api not working

Hi Team,

We are using below end point to rescale the workorder but we are getting below error.
The request content does not represent an action or it has an invalid structure.

Url: https://fa-epod-dev17-saasfaprod1.fa.ocs.oraclecloud.com/fscmRestApi/resources/11.13.18.05/processWorkOrders/action/scaleProcessWorkOrder

Payload:
{
"scheduleOption": "forward",
"organizationCode": "MRC_MFG_RMP",
"workOrderNumber": "RMP1342",
"scaledQuantity": "22550",
"operationSequenceNumber": "10",
"operationItemSequenceNumber": "1",
"additionalProperties": false
}

Please check and do the needful.