Zoho Projects as part of Zoho CRM Plus - function to create new project when Deal status changes

Zoho Projects as part of Zoho CRM Plus - function to create new project when Deal status changes

Hi there,

This is my first post on this forum so bear with me :-).
I have created a Function to create a new project in Zoho Projects that I will associate to workflow automation to trigger this function when a deal stage changes. Being new to Deluge I am struggling to get the Group of the new project assigned. Below is the code of the function which is largely based on an article I found. 
I can't figure out how the Group Name is stored in the database (format). 
Any help on this will be much appreciated. 

  2. createMap = Map();
  3. createMap.put("name",ProjName);
  4. createMap.put("description",Description);
  5. createMap.put("template_id",TemplateID);
  6. //createMap.put("group_id",GroupID);
  7. //custom fields
  8. //end of custom fields
  9. response = zoho.projects.createProject(PortalName,createMap,"rwrelateproject");
  10. info response;
  11. mp = Map();
  12. mp.put("name",ProjName);
  13. datalist = List();
  14. datalist.add(mp);
  15. datamp = Map();
  16. datamp.put("data",datalist);
  17. resp2 = invokeurl
  18. [
  19. url :"https://www.zohoapis.com/crm/v2/Deals/" + id + "/Zoho_Projects/" + response.getJSON("projects").getJSON("id")
  20. type :POST
  21. parameters:datamp.toString()
  22. connection:"rwrelateproject"
  23. ];
  24. info resp2;
    25.