像素事件设置问题

如何解决像素事件设置问题

在向 facebook adsets 端点发送请求时，我们收到此错误，

"You may need to set up this event on a domain. If you've already configured your event in Events Manager,manually turn on and publish your ad set. Otherwise,select a new event. If your ad set has already been published,you must duplicate it first before changing its event or optimisation goal."

我们使用的是沙盒广告帐户。该域设置为跟踪浏览量和购买事件，使用 facebook 像素助手 2.2.0 版进行验证。

请查看发送到 adsets 端点的数据，

{
  name: "xxx",campaign_id: "a valid id",start_time: "a valid id",billing_event: "IMPRESSIONS",bid_amount: "10",targeting: "{ \n        \"geo_locations\": {\"countries\":['US']},'genders': [1],'age_min': 21,'age_max': 65,'locales': [6,24]}",promoted_object: '{\n  "pixel_id":'+"a valid pixel id"+',\n  "custom_event_type": "PURCHASE"\n}',daily_budget: 7000,status: "PAUSED"
}