Value is Not Passing Through to Create Event API

We’re using the Create Events API endpoint https://a.klaviyo.com/api/events/ to pass the value of the order of our customer.  Attributes are passing fine and I can see the “Ordered Product” metric populating with data for the correct customer.  However, the “value” isn’t showing up in the metrics so we can’t run reports.  Here is the code we’re using direct from Klaviyo’s documentation. 

https://developers.klaviyo.com/en/docs/guide_to_integrating_a_platform_without_a_pre_built_klaviyo_integration#ordered-product

    "data": {
        "type": "event",
        "attributes": {
            "profile": {
                "$email": "john.smith@test.com",
                "$phone_number": "5551234567",
            },
            "metric": {
                "name": "Placed Order"
            },
            "properties": {
                "OrderId": "1234567890",
                }
            },
        "time": "2022-12-05T15:00:00Z",
        "value": 9.99,
        "unique_id": "1234567890"
        }

Anyone know why?