Hi @RajeshP25, You can use Connect-Rest wizard to generate structure automatically whenever you get the new updates to the request. Make sure that you are giving correct details in the wizard. Example :

1. I have a requirement to create a connector with POST method, I ran the wizard and created connector successfully with below request structure.

    {   "Id": 78912,   "Customer": "Jason Sweet",   "Quantity": 1, }  

   Integration Details

   Integration class :Customer

   Integration class ID :Int-Customer

   Ruleset : CustInt:01-01-01

   Data Layer Details

   Data class : Cust Details

   Data class ID :Data-Customer

   Ruleset : CustData:01-01-01

2. Now we got a requirement to add additional field (Price)  in the request structure like below.  {   "Id": 78912,   "Customer": "Jason Sweet",   "Quantity": 1,   "Price": 18.00, } You just need to run the wizard again with same details and in the Data model screen of the wizard, please upload the updated response file or hit the service directly.  In the last screen give the data and integration class names (which were created in the initial run) and select existing rulesets and lets ask pega to create new version :)  

   Integration Details

   Integration class :Customer

   Integration class ID :Int-Customer

   Ruleset : CustInt:01-01-02

   Data Layer Details

   Data class : Cust Details

   Data class ID :Data-Customer

   Ruleset : CustData:01-01-02

   If you complete all the steps in wizard mentioned like above. What pega does is it will update the request Data transform with the new structure :) I tried from my side it worked

Thanks, Vinay