分账请求 分账方有2个，1分给电商收付通平台商户号，2.推荐人的小程序openid

.推荐人已使用接口加入分账方:{"appid":"wxc2f50dcff3ff92c2","type":"PERSONAL_OPENID","account":"o6sJn5J3C5SxXlkw6eUDMxmbicDo","relation_type":"SUPPLIER"}

分账信息：{"sub_mchid":"1587204221","transaction_id":"4332200634202006305295520378","out_order_no":"ECSHARE20200629235920013","receivers":[

{"type":"PERSONAL_OPENID","receiver_account":"o6sJn5J3C5SxXlkw6eUDMxmbicDo","amount":54,"description":"分佣推荐人wx_13917355566"},

{"type":"MERCHANT_ID","receiver_account":"1579883051","amount":27,"description":"佣金分给平台1579883051"}

],"finish":false}

分账信息结果：{"code":"PARAM_ERROR","message":"请求参数错误"}

这个参数哪地方不对吗？都是安装文档说明写的