Google Analytics management API insert property- Insufficient Permission 403

Question

I am having problem using python Google Analytics reports API to create new web property under account. I can get list of properties with no problem but when I try to insert it returns me 403. When I try to use API explorer it shows: 403 Forbidden

"errors": [
      {
        "domain": "global",
        "reason": "insufficientPermissions",
        "message": "Your project does not have access to this feature."
      }
]

Answer 1

These API are currently in beta :

Write operations in the Management API (eg create, update, delete, patch) for Web Property, View (Profile), and Goal resources is currently available as a developer preview in limited beta. If you're interested in using these features, request access to the beta.