Google Ads Conversions - DEVELOPER_TOKEN_PARAMETER_MISSING

I’m trying to set up a Data Pipeline conversion enrichment action triggered by an “identify” event, but it always returns this error:
 

{
  "error": {
    "code": 400,
    "message": "Request contains an invalid argument.",
    "status": "INVALID_ARGUMENT",
    "details": [
      {
        "@type": "type.googleapis.com/google.ads.googleads.v15.errors.GoogleAdsFailure",
        "errors": [
          {
            "errorCode": {
              "requestError": "DEVELOPER_TOKEN_PARAMETER_MISSING"
            },
            "message": "developer-token parameter is missing."
          }
        ],
        "requestId": "T6wuEAdytOdyd5KK1pkmzQ"
      }
    ]
  }
}

I’ve already tried to reauthorize the Google API connection and changed the pattern for the Conversion ID, Customer ID, and Manager ID. I also tried emptying the Customer and Manager ID fields, but I still get the same error.

Has anyone encountered this issue before or has any suggestions?