参数：<?xml version="1.0" encoding="UTF-8" standalone="no"?><xml><transaction_id>58a18380a7af7d961f0a352fb946e804</transaction_id><mch_customs_no>3225660010</mch_customs_no><out_trade_no>4200000901202102228694782492</out_trade_no><appid>****</appid><customs>HANGZHOU</customs><sign>8BDFD4DF8736D38850AA5C0CCC0CFF12</sign><mch_id>****</mch_id></xml
相关问题
按照文档传参 https://pay.weixin.qq.com/wiki/doc/api/external/declarecustom.php?chapter=18_1
<![CDATA[输入参数不合法]]>
请问你们这个问题怎么解决的?