Hi Team, 
We use user 9039365 to generate the token through the API endpoint - https://selectapi.datascope.refinitiv.com/RestApi/v1/Authentication/RequestToken
API Response - Token generated successfully.
We use the token in the API Endpoint for Data Retrieval - https://selectapi.datascope.refinitiv.com/RestApi/v1/Search/FuturesAndOptionsSearch
API Response - Data fetched successfully.
When I am trying the same process with user - 9032158
We use user 9032158 to generate the token through the API endpoint - https://selectapi.datascope.refinitiv.com/RestApi/v1/Authentication/RequestToken
API Response - Token generated successfully.
We use the token in the API Endpoint for Data Retrieval - https://selectapi.datascope.refinitiv.com/RestApi/v1/Search/FuturesAndOptionsSearch
Request Type : POST 
Request Body : 
{    "SearchRequest": {        "FileCodes": null,        "CurrencyCodes": null,        "ExchangeCodes": null,        "PutCall": "Call",        "StrikePrice": {            "@odata .type": "#DataScope.Select.Api.Search.NumericValueComparison",            "ComparisonOperator": "Equals",            "Value": "640"        },        "ExpirationDate": {            "@odata .type": "#DataScope.Select.Api.Search.DateValueComparison",            "ComparisonOperator": "Equals",            "Value": "2025-08-15T00:00:00.000Z"        },        "PreferredIdentifierType": "Ric",        "UnderlyingRic": "PHNX.L"    }}
API Response - Data not fetched successfully.
Status Code - 400 Bad Request
Response Body - {    "error": {        "message": "Validation Error:\r\n\r\nThe Identifier Type CSP is not supported; supported values are: RIC, ISN, PID, PIDQ, RRT, UNR, OCC, SYM"    }}
Could you please look into the issue and fix this. Also, if it is rights issue. Then please provide the same rights to user - 9032158 that we have for successful user - 9039365.