Google Ads API Conversion Event Not AllowListed

[David Levin]

Hello,
We are attempting to create Google Ads click conversions to the REST API. 
However, I am getting an error that says "Customer is not allowlisted for 
accessing this feature., at conversions[0].conversion_environment"

I am logged in as the Manager Account with admin + owner access.  Here is 
an example request:

https://googleads.googleapis.com/v13/customers/XXXXX:uploadClickConversions
```
"conversions": [
{
"gbraid": "",
"wbraid": "",
"externalAttributionData": {},
"customVariables": [],
"cartData": {},
"userIdentifiers": [],
"conversionEnvironment": "WEB",
"gclid": " XXXXX",
"conversionAction": "customers/XXXXX/conversionActions/1046888366",
"conversionDateTime": "2023-03-19 12:32:45-08:00",
"conversionValue": 100,
"currencyCode": "USD",
"orderId": "1"
}
],
"partialFailure": true,
"validateOnly": true,
"debugEnabled": true
} 
```

The exact response I receive is:
```
{
  "partialFailureError": {
    "code": 3,
    "message": "Customer is not allowlisted for accessing this feature., at 
conversions[0].conversion_environment",
    "details": [
      {
        "@type": 
"type.googleapis.com/google.ads.googleads.v13.errors.GoogleAdsFailure",
        "errors": [
          {
            "errorCode": {
              "notAllowlistedError": 
"CUSTOMER_NOT_ALLOWLISTED_FOR_THIS_FEATURE"
            },
            "message": "Customer is not allowlisted for accessing this 
feature.",
            "trigger": {
              "int64Value": "2"
            },
            "location": {
              "fieldPathElements": [
                {
                  "fieldName": "conversions",
                  "index": 0
                },
                {
                  "fieldName": "conversion_environment"
                }
              ]
            }
          }
        ]
      }
    ]
  }
}

Can you please assist in resolving the issue?

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