商家通过小程序B2B门店接入B2B支付，

{errMsg: "requestCommonPayment:fail webapi_wxa_createmidasorder:fail server system error", errno: 1000, errCode: undefined}

{

"mode": "retail_pay_goods",

"signData": "{\"mchid\":\"1696431917\",\"out_trade_no\":\"20241028120045842103\",\"description\":\"\\u8ba2\\u5355\\u652f\\u4ed8\",\"amount\":{\"order_amount\":2550,\"currency\":\"CNY\"},\"attach\":\"test\",\"env\":0}",

"paySig": "c944cf655efc79f653405e421d97c5536a46c31a7640f3c8609b07b96426dc2a",

"signature": "24dd4be5a458105cff4f0fb86f81c6f7972bda13f00937e726492da08f0c3a44"

}