Hi, I'm using Jupyter Notebook trying to run a simple lookup using this Symbology API endpoint, https://api.refinitiv.com/discovery/symbology/v1/lookup, and I get the message below. I tried this same code in CODEBOOK  and I get the same error.
The AppKey I used to run the query in Jupyter is generated using my RDP login. When I run a POST request in the API Playground, it works just fine so I'm thinking I have permission to this API. IS there a need for entitlement to access SEDOLs? If so, how can we request for this. Thanks. 
Error:
{
  "data": [
    {
      "input": [
        {
          "value": "000001.SZ",
          "identifierType": "RIC"
        }
      ],
      "output": [],
      "errors": [
        "User is not entitled to receive the identifier back"
      ]
    }
  ],
  "requestId": "91884a94-3da6-42fd-8561-9a927475b948",
  "effectiveAt": "2022-04-07T01:11:56.675Z",
  "messages": [
    "This account is not entitled to all requested identifier types"
  ]
}
#This is the code I used in CODEBOOK using the default key which has the same error.
------------------
import refinitiv.dataplatform as rdp
import json
session=rdp.open_desktop_session('DEFAULT_CODE_BOOK_APP_KEY')
session.open()
search_endpoint = rdp.Endpoint(session,
    "https://api.refinitiv.com/discovery/symbology/v1/lookup")
request_body={
  "from": [
    {
      "identifierTypes": [
        "RIC"
      ],
      "values": [
        "000001.SZ"
      ]
    }
  ],
  "to": [
    {
      "identifierTypes": [
        "SEDOL"
      ]
    }
  ],
  "reference": [
    "name",
    "status",
    "classification"
  ],
  "filter": {
    "status": "active"
  },
  "type": "auto"
}
response = search_endpoint.send_request(
    method = rdp.Endpoint.RequestMethod.POST,
    body_parameters = request_body)
print(json.dumps(response.data.raw, indent=2))