How to perform shipping transactions in batch?

Summary:

Unable to perform shipping transactions in batch and response payload is not self explanatory.

Content (please ensure you mask any confidential information):

URL - https://fa-xxxx-saasfaprod1.fa.ocs.oraclecloud.com:443/fscmRestApi/resources/11.13.18.05/shippingTransactions

Method - POST

Content-Type - application/vnd.oracle.adf.batch+json

Request Payload -
{
"parts": [
{
"id": "1",
"path": "/shippingTransactions",
"operation": "create",
"payload": {
"ShipmentName": "11",
"Action": "CONFIRM",
"Organization": "ORGNAME"
}
},
{
"id": "2",
"path": "/shippingTransactions",
"operation": "create",
"payload": {
"ShipmentName": "12",
"Action": "CONFIRM",
"Organization": "ORGNAME"
}
}
]
}

Response Payload -

{
"parts": [
{
"id": "1",
"path": "https://fa-xxxx-saasfaprod1.fa.ocs.oraclecloud.com:443/fscmRestApi/resources/11.13.18.05/shippingTransactions",
"operation": "create",
"payload": null
},
{
"id": "2",
"path": "https://fa-xxxx-saasfaprod1.fa.ocs.oraclecloud.com:443/fscmRestApi/resources/11.13.18.05/shippingTransactions",