"plugins": {
      "sendCoupon": {
        "version": "1.4.7",
        "provider": "wxf3f436ba9bd4be7b"
      }
}

<send-coupon
  send_coupon_params="[{
      stock_id: '16550468',
      out_request_no: '202207011337476973632695118',
      create_coupon_merchant: '***'
    }]" 
  sign="***" 
  send_coupon_merchant="***"
  suggest_immediate_use="{{false}}"
></send-coupon>

报错信息：

{
    "data":{
        "send_coupon_result":[
            {
                "code":"FAILED",
                "message":"KV",
                "out_request_no":"202207011355420940197840996",
                "stock_id":"16549353"
            }
        ]
    },
    "errcode":0,
    "graphid":33596861
}