# WhatsApp Business API

- [WhatsApp Business API](/api-reference/whatsapp-business-api/whatsapp-business-api.md): InnoPaaS 平台为企业客户对接发送Meta WhatsApp 消息，提供统一Api接口技术支持。本协议统一数据编码格式为:UTF-8。接口采用:HTTPS ，且TLS协议版本 >=1.2，接口用户认证采用请求头Authorization认证，具体看2.1 公共请求头。
- [消息Message](/api-reference/whatsapp-business-api/whatsapp-business-api/xiao-xi-message.md)
- [模板Template](/api-reference/whatsapp-business-api/whatsapp-business-api/mu-ban-template.md)
- [文件上传Upload](/api-reference/whatsapp-business-api/whatsapp-business-api/wen-jian-shang-chuan-upload.md)
- [WebHook](/api-reference/whatsapp-business-api/webhook.md)
- [配置WebHook](/api-reference/whatsapp-business-api/webhook/pei-zhi-webhook.md): Waba有消息更新时，会通过Webhook将更新事件推送给客户。包括消息状态更新、用户回复消息、Waba账号审核状态更新、WhatsApp模板状态更新、发送号码显示名称变更等。
- [消息状态](/api-reference/whatsapp-business-api/webhook/xiao-xi-zhuang-tai.md)
- [上行消息](/api-reference/whatsapp-business-api/webhook/shang-xing-xiao-xi.md)
- [模版状态](/api-reference/whatsapp-business-api/webhook/mo-ban-zhuang-tai.md)
- [Inbox聊天消息事件](/api-reference/whatsapp-business-api/webhook/inbox-liao-tian-xiao-xi-shi-jian.md): 聊天室上下行消息仅针对在聊天室 的消息事件监听
- [错误代码](/api-reference/whatsapp-business-api/cuo-wu-dai-ma.md)
- [自定义错误代码](/api-reference/whatsapp-business-api/cuo-wu-dai-ma/zi-ding-yi-cuo-wu-dai-ma.md)
- [Meta错误代码](/api-reference/whatsapp-business-api/cuo-wu-dai-ma/meta-cuo-wu-dai-ma.md)
- [语言编码](/api-reference/whatsapp-business-api/yu-yan-bian-ma.md)