Connect AWS Budgets to Slack: Alert before the surprise bill arrives
AWS Budgets tracks spending. Alerting to email is useless (gets buried). Slack alerts are visible.
Set up AWS Budgets
- Create budget. Define limit (£5,000/month).
- Set alerts at 50%, 80%, 100%, 120% of budget.
- Choose alert recipients.
Connect to Slack with SNS
Create SNS topic. Subscribe Slack to it. Configure Budgets to send alerts to SNS.
Connect Slack workspace. Authorize SNS. Done.
Alert thresholds
50%: Informational. Check if spending is on track.
80%: Yellow flag. Investigate unusual costs.
100%: Red flag. Stop non-critical spending.
120%: Critical. Escalate immediately.
Spend by service
Create separate budgets for high-cost services (compute, storage). Catch problems fast.
Where Critical Cloud comes in
Budgets show total spending. Hidden in the numbers is waste. We drill into anomalies. You see why spend is high, not just that it is.