Amazon EventBridge Scheduler
Task invocation scheduling
Create schedules (cron, rate, one-time) to directly invoke hundreds of AWS APIs or targets such as Lambda, SQS, and Step Functions; large scale, with time zone and retry support.
- Cost$ Low
- Difficulty●●●●●
- Costs money when idle?No
- Serverless
- In examsDVA · SOA
Think of it asLike an alarm clock for the whole system: when the time comes, it triggers the right job.
When to use it
✓ Use it when
You need to run tasks on a schedule or set one-time timers for individual users.
✗ Avoid it when
Reacting to events rather than time → EventBridge rule / Pipes.
Common uses
- Send each customer a reminder at their appointment time
- Stop dev EC2 instances at 7 PM daily
- Run nightly reports with Lambda
What does it cost?
- Pricing model: Charged by the number of schedule invocations, with a monthly free tier.
Related services
SAA-C03 study guide
Scheduler is covered in these study modules: