服务商模式下，调用查询订单接口，接口参数传入了sub_appid,但返回值sub_openid为空。已经确认的是，该用户使用过付款码支付和小程序支付。且在小程序支付后，通过查询订单发现，返回的openid与小程序的openid不符，返回值如下： { "transaction_id": "4200000498201912316294626437", "nonce_str": "wzF6v7xsHDJQJzVH", "trade_state": "SUCCESS", "bank_type": "CMB_CREDIT", "openid": "oAT3B51FsOTJ4DXcFUiOv7gU8E-4", "sign": "912D9F22B5FDCA2E0DA997FA41969152", "return_msg": "OK", "fee_type": "CNY", "mch_id": "****", "sub_mch_id": "***", "cash_fee": "300", "out_trade_no": "CPRP749065074", "cash_fee_type": "CNY", "appid": "****", "total_fee": "300", "trade_state_desc": "支付成功", "trade_type": "NATIVE", "result_code": "SUCCESS", "attach": "", "time_end": "20191231141141", "is_subscribe": "Y", "return_code": "SUCCESS" }