微信支付特约商户进件提交申请单平台证书序列号Wechatpay-Serial错误，求助？

微信支付文章 2021-04-07 20:02 4847  0 全屏看文

微信支付特约商户进件提交申请单平台证书序列号Wechatpay-Serial错误，求助？Wechat pay special merchants submit the application form and the platform certificate serial number Wechatpay-Serial is wrong, ask for help?

在走到提交申请单的时候，返回证书序列号的错误问题，当我从微信商户平台里获取证书序列号，获取步骤如图：

请求时，返回平台证书序列号Wechatpay-Serial错误

然后又通过接口，获取平台证书列表 https://api.mch.weixin.qq.com/v3/certificates

获取到的证书序列号，如图

请求时返回：商户证书序列号有误。请使用签名私钥匹配的证书序列号

请问这个序列号应该怎么获取呢

When I go to submit the application form, I return the error of the certificate serial number. When I get the certificate serial number from the wechat merchant platform, the acquisition steps are as follows: when I request, I return the error of the platform certificate serial number wechatpay serial, and then I get the platform certificate list through the interface https://api.mch.weixin.qq.com/v3/certificates Get the serial number of the certificate, as shown in the figure Return on request: the serial number of merchant certificate is wrong. Please use the certificate serial number matched with the signature private key. How can I get this serial number

回答：

爷爷抱孙子:

微信通知我

跨商通:

是敏感信息加密吧？

在进件接口的消息包的header里，Wechatpay-Serial=你上面下载的平台证书的serial_no，然后敏感信息加密算法里要使用该证书的key。

Memory:

平台证书说明指引：https://wechatpay-api.gitbook.io/wechatpay-api-v3/chang-jian-wen-ti/zheng-shu-xiang-guan。这里指的是平台证书，不是商户证书。

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