how to update contract header and contract lines together in batch using rest api

Summary:

how to update contract header and contract lines together in batch using rest api

Content (please ensure you mask any confidential information):

what will be the request payload in the body?

what will be in header?

and what will be in url

am using the below payload in body

{

  "ContractId": 300000951226701, 

"AmendmentEffectiveDate": "2025-05-20" 

"ContractLines":

[ 

  {   

  "LineId": 300001403187249,   

  "AllowCustomAdjustmentsFlag": "Y" 

  }

  ]

}

and url as

https://fa-evwr-dev1-saasfaprod1.fa.ocs.oraclecloud.com/fscmRestApi/resources/11.13.18.05/contracts

method as patch

header

content type as application/json

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):