Conversion campaign - Issue in selective_optimization

[SR]

Can we use selective_optimization in Google Search and Display campaigns?

I have shared the request and response details below. Please let me know 
what is the issue and how to resolve this.

Request details:
URL:
https://googleads.googleapis.com/v10/customers/REDACTED/campaigns:mutate
Header:
{'Content-Type': 'application/json', 'developer-token': 'REDACTED', 
'login-customer-id': 'REDACTED', 'Authorization': 'Bearer REDACTED'}
Data:
{'validate_only': True, 'operations': [{'create': {'status': 'PAUSED', 
'advertisingChannelType': 'SEARCH', 'name': 'test', 'campaignBudget': 
'customers/REDACTED/campaignBudgets/REDACTED', 'startDate': '2022-07-10', 
'endDate': '2022-07-20', 'networkSettings': {'targetGoogleSearch': 'true', 
'targetSearchNetwork': 'true', 'targetContentNetwork': 'false', 
'targetPartnerSearchNetwork': 'false'}, 'biddingStrategyType': 
'MAXIMIZE_CONVERSIONS', 'selectiveOptimization': {'conversionActions': 
['customers/REDACTED/conversionActions/REDACTED', 
'customers/REDACTED/conversionActions/REDACTED', 
'customers/REDACTED/conversionActions/REDACTED', 
'customers/REDACTED/conversionActions/REDACTED', 
'customers/REDACTED/conversionActions/REDACTED', 
'customers/REDACTED/conversionActions/REDACTED']}, 'maximizeConversions': 
{}}}]}

Getting the following error:
{
  "error": {
    "code": 400,
    "message": "Request contains an invalid argument.",
    "status": "INVALID_ARGUMENT",
    "details": [
      {
        "@type": 
"type.googleapis.com/google.ads.googleads.v10.errors.GoogleAdsFailure",
        "errors": [
          {
            "errorCode": {
              "requestError": "UNKNOWN"
            },
            "message": "The error code is not in this version.",
            "trigger": {
              "stringValue": ""
            },
            "location": {
              "fieldPathElements": [
                {
                  "fieldName": "operations",
                  "index": 0
                },
                {
                  "fieldName": "create"
                },
                {
                  "fieldName": "selective_optimization"
                },
                {
                  "fieldName": "conversion_actions"
                }
              ]
            }
          }
        ],
        "requestId": "ywajMew3_-B46URFU60f0Q"
      }
    ]
  }
}


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