通信基础
了解从发送消息到更新应用之间发生了什么。实践正常流程，并从故障中恢复。
使用现有的 Bird 账户登录，保存进度并完成练习。
01 · Email · 英语
Your first email
A customer places an order. Give them a clear, personal confirmation, and know what happens after you send.
02 · Email · 英语
Delivery & events
Accepted is the beginning of the story. Explore delivery, bounces, and complaints without reaching a real customer.
03 · SMS · 英语
Smarter SMS
Small changes to a message can change its encoding and segment count. Keep the meaning while making the message more efficient.
04 · WhatsApp · 英语
WhatsApp replies
Send a useful order update, then let the customer choose where to leave their delivery.
05 · Verify · 英语
Verify a customer
Verification is a small interaction with an important job: establish that someone controls the destination.
06 · Realtime · 英语
Realtime updates
Your operations team changes an order. Your customer’s tracking screen should change with it.
07 · Platform · 英语
Reliable webhooks
Events can arrive more than once. A trustworthy integration verifies the sender and processes each event appropriately.
08 · Certification · 英语
Practical assessment
Build an order-notification workflow for a new scenario. Your results determine whether you pass.