ISG REST payload to book the sales order in oracle apps r12

Summary:

Hi Developers,
I was able to create a sales order through OE_INBOUND_INT.process_order API by using Integrated SOA gateway in oracle apps r12 but I was unable to book that sales order using the Same API
This is the payload I was using to book the sales order. I was not getting any error but unble to update the Booking flag
{
"PROCESS_ORDER_Input": {
"RESTHeader": {
"Responsibility": "ORDER_MGMT_SUPER_USER",
"RespApplication": "ONT",
"SecurityGroup": "STANDARD",
"NLSLanguage": "AMERICAN",
"Org_Id": "204"
},
"InputParameters": {
"P_API_VERSION_NUMBER": 1,
"P_INIT_MSG_LIST": "T",
"P_RETURN_VALUES": "T",
"P_ACTION_COMMIT": "T",