AWS AppFlow salesforce integration using CloudFormation with Salesforce Connector app

I am trying to create AWS::AppFlow::ConnectorProfile for Salesforce connector app. Here is the test sample:

      Type: AWS::AppFlow::ConnectorProfile
      Properties: 
        ConnectorProfileName: my_salesforce_connection
        ConnectorType: Salesforce
        ConnectionMode: Public
        ConnectorProfileConfig:
          ConnectorProfileProperties:
            Salesforce:
              InstanceUrl: ${env:INSTANCE_URL}
              IsSandboxEnvironment: ${env:IS_TEST_ENV}
          ConnectorProfileCredentials:
            Salesforce:
              ClientCredentialsArn: ${env:SALESFORCE_CREDS_ARN}

But when running this, it is returning below error: Validation exception: AuthCode cannot be blank for connector: SALESFORCE

But as you notice I want to make creation of connector profile fully automatic with CloudFormation.

Let me know if you have any suggestions or fix. Thanks.