Which AWS service can notify customers when they exceed their defined spending thresholds?

AWS Budgets allows you to set custom budgets and receive alerts when your costs or usage exceed your budgeted amounts or forecasted thresholds. This proactive notification helps manage spending effectively. AWS Cost Explorer is a tool for visualizing and analyzing your costs and usage over time, but it doesn't send notifications for exceeding thresholds. AWS Cost Allocation Tags are used to categorize and track costs for different projects or departments, not for setting spending limits and alerts. AWS Organizations helps you centrally manage multiple AWS accounts, but it doesn't directly provide budget notification features.