{
   "compositeRequest":[
      {
         "method":"PATCH",
         "url":"/services/data/v39.0/sobjects/Opportunity/SID_Opportunity_ID__c/SFO-2498",
         "referenceId":"newOpp1",
         "body":{
            "Bid_Number__c":"B889054",
            "Business_Area__c":"M&E",
            "Order_Number__c":null,
            "CloseDate":"2019-01-31",
            "OwnerId":"005D0000001mTR9IA2",
            "AccountId":"001D000000tw39BI0Q",
            "Call_to_Action__c":false,
            "StageName":"Upside",
            "Name":"Some random oppt"
         }
      },
      {
         "method":"PATCH",
         "url":"/services/data/v39.0/sobjects/Quote/SID_Bid_Key__c/JIGS*SALE*B889054",
         "referenceId":"newQuote1",
         "body":{
            "OpportunityId":"006D000000zLj7uIAC",
            "Name":"B889054"
         }
      },
      {
         "method":"PATCH",
         "url":"/services/data/v39.0/sobjects/Quote_Item__c/Quote_Line_Id__c/JIGS*SALE*B889054*1",
         "referenceId":"newQuoteLine1",
         "body":{
            "Item_Line_Id__c":"1",
            "Quote__c":"@{newQuote1.id}",
            "Description__c":"Some description"
         }
      }
   ]
}

{
   "compositeResponse":[
      {
         "body":null,
         "httpHeaders":{

         },
         "httpStatusCode":204,
         "referenceId":"newOpp1"
      },
      {
         "body":null,
         "httpHeaders":{

         },
         "httpStatusCode":204,
         "referenceId":"newQuote1"
      },
      {
         "body":[
            {
               "errorCode":"PROCESSING_HALTED",
               "message":"Invalid reference specified. No value for newQuote1.id found in newQuote1"
            }
         ],
         "httpHeaders":{

         },
         "httpStatusCode":400,
         "referenceId":"newQuoteLine1"
      }
   ]
}