Queues, rate limits, and deadlines
Track backlog, oldest-message age, configured rate, and expiration. A short event reminder can become misleading if it leaves the queue after the event starts.
Putting the guide into practice
Estimate capacity from segments and useful time window, define a late-message stop condition, and confirm which queued requests can be canceled.
- Backlog
- Oldest age
- Capacity assumption
- Cancellation boundary
Limits and review decisions
Do not count queued messages as delivered. A rate limit tells you about processing capacity, not recipient attention.