@Prathibha.Mariyappa,

I'm not 100% sure of what you are trying to achieve with this Entity Search call, but to narrow down the results to only 1 item I'd suggest you change the following parameters:

"DomicileCodes": ["DE"],
"IssuersOnly": true,
"VerifiedOnly": true,

The first one of these 3 you might want to reconsider, depending on the use case, but the other two are usual settings I believe. Here is the resulting call:

Method: POST

Endpoint: https://hosted.datascopeapi.reuters.com/RestApi/v1/Search/EntitySearch

Body:

{
    "SearchRequest": {
        "ActiveOnly": true,
        "CountryOfIncorporationCodes": ["DE"],
        "DomicileCodes": ["DE"],
        "IssuersOnly": true,
        "Name": "Deutsche Bank AG",
        "OfficialNameOnly": true,
        "RegulatedOnly": null,
        "TrBusinessClassificationCodes": null,
        "VerifiedOnly": true,
        "Identifier": null,
        "IdentifierType": "RcpId",
        "PreferredIdentifierType": "RcpId"
    }
}

Result:

{
  "@odata.context": "https://hosted.datascopeapi.reuters.com/RestApi/v1/$metadata#Collection(ThomsonReuters.Dss.Api.Content.ValidatedEntity)",
  "value": [
    {
      "@odata.type": "#ThomsonReuters.Dss.Api.Search.EntitySearchResult",
      "Identifier": "10459",
      "IdentifierType": "OrgId",
      "Key": "VjF8MHgwMDAzZWYwNmMzYWEwNjg1fEVORU58MTA0NTl8T1JH",
      "Description": "DZ BANK AG Deutsche Zentral-Genossenschaftsbank, Frankfurt am Main",
      "InstrumentType": "Entity",
      "Type": "Business Organization",
      "Domicile": "Germany",
      "CountryOfIncorporation": "Germany",
      "ParentOrgId": "10459",
      "UltimateParentOrgId": "10459"
    }
  ]
}

Hope this helps.