things:feature.property.notmodifiable

{
  "topic": "unknown/unknown/things/twin/errors",
  "headers": {},
  "path": "/",
  "value": {
    "status": 403,
    "error": "things:feature.property.notmodifiable",
    "message": "The Property with JSON Pointer '/x' of the Feature with ID 'accelerometer' on the Thing with ID 'com.acme:xdk_53' could not be modified as the requester had insufficient permissions to modify it (WRITE is required).",
    "description": "Check if the ID of the Thing, the Feature ID and the key of your requested property was correct and you have sufficient permissions."
  },
  "status": 403
}