Which AWS service lets a company set spending thresholds and receive alerts when those thresholds are exceeded?

AWS Budgets is the correct service because it allows you to set custom budgets to track your cost and usage, and then receive alerts when your actual or forecasted costs exceed your defined thresholds. This proactive notification helps manage spending effectively. AWS Cost and Usage Reports provide detailed data but don't offer real-time alerts based on thresholds. AWS Organizations consolidated billing aggregates costs for multiple accounts but doesn't provide budget-based alerting. Cost Explorer visualizes and analyzes your spending patterns but also lacks the direct threshold-alerting functionality of AWS Budgets.