AWS Budgets allows you to set custom cost and usage budgets for your AWS services. A key feature of AWS Budgets is its ability to send alerts when your actual or forecasted costs and usage exceed the thresholds you define. This directly addresses the company's requirement to track costs and receive notifications when spending is forecasted to reach a specific level. You can configure these alerts to be delivered via Amazon Simple Notification Service (SNS), email, or AWS Chatbot, ensuring timely notification to manage spending proactively.

B. AWS Cost Explorer is a tool for visualizing and analyzing historical and forecasted cost and usage data, but it does not natively create and send threshold-based alerts.

C. Savings Plans are a flexible pricing model that provides lower prices on compute usage in exchange for a commitment. It is a cost-optimization tool, not a cost-tracking and alerting service.

D. AWS Billing Conductor is a service for customizing billing data for chargeback and showback purposes, typically used by AWS Solution Providers or enterprises with multiple business units.

1. AWS Budgets User Guide: "Managing your costs with AWS Budgets." It states

"You can also set up alerts to notify you when your actual or forecasted cost and usage exceeds

or is forecasted to exceed

your budget." (Source: AWS Documentation

AWS Budgets User Guide

"What is AWS Budgets?")

2. AWS Cost Management Documentation: "AWS Cost Explorer." This document describes Cost Explorer as a tool to "visualize

understand

and manage your AWS costs and usage over time

" focusing on analysis and visualization rather than alerting. (Source: AWS Documentation

AWS Cost Management User Guide

"What is AWS Cost Explorer?")

3. AWS Savings Plans User Guide: "What are Savings Plans?" This guide defines Savings Plans as "a flexible pricing model that provides savings of up to 72% on your AWS compute usage." (Source: AWS Documentation

Savings Plans User Guide

"Overview")

4. AWS Billing Conductor User Guide: "What is AWS Billing Conductor?" The guide explains

"AWS Billing Conductor is a customization service that supports the showback and chargeback workflows of AWS Solution Providers and Enterprise customers." (Source: AWS Documentation

AWS Billing Conductor User Guide

"Overview")