调用接口是:https://api.mch.weixin.qq.com/mmpaymkttransfers/promotion/transfers
返回:<xml>
<return_code>
<![CDATA[SUCCESS]]>
</return_code>
<return_msg>
<![CDATA[证书已过期]]>
</return_msg>
<mch_appid>
<![CDATA[wxfde0abf0b33eec44]]>
</mch_appid>
<mchid>
<![CDATA[1323386901]]>
</mchid>
<result_code>
<![CDATA[FAIL]]>
</result_code>
<err_code>
<![CDATA[CA_ERROR]]>
</err_code>
<err_code_des>
<![CDATA[证书已过期]]>
</err_code_des>
</xml>
api证书也没过期:
试试更换一下证书把