> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://kb.byw.ltd/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# 如何使用优惠码

在商城新购买套餐对应位置输入优惠码，必须要点击 **应用**才能生效

![](https://storage.crisp.chat/users/helpdesk/website/-/8/7/f/3/87f3371816ec8800/3_hmrk3k.png)

![](https://storage.crisp.chat/users/helpdesk/website/-/8/7/f/3/87f3371816ec8800/4_1xec042.png)

![](https://storage.crisp.chat/users/helpdesk/website/-/8/7/f/3/87f3371816ec8800/5_10b0rsc.png)

或续费管理对应位置输入优惠码，必须要点击 **应用**才能生效


![](https://storage.crisp.chat/users/helpdesk/website/-/8/7/f/3/87f3371816ec8800/6_kngqfj.png)