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Difficulty: MediumCost Allocation Tags and Resource Tagging Strategies

A financial company is auditing its cloud expenditures across several member accounts within an AWS Organization. To track costs associated with a new data analysis project, a SysOps Administrator has written a Python script using AWS Systems Manager to apply a tag with the key `ProjectAnalysis` and value `DataLake` to all active Amazon EBS volumes. However, when the administrator logs into AWS Cost Explorer in the management account, the `ProjectAnalysis` tag is not available as a filtering option. Which action should the SysOps Administrator take to ensure the tag can be used to filter costs?

  1. Access the AWS Billing and Cost Management console from the management account, navigate to Cost Allocation Tags, select the `ProjectAnalysis` tag, and click Activate.Answer
  2. B
    Log into each member account individually, access the AWS Billing and Cost Management console, and activate the `ProjectAnalysis` tag within each account.
  3. C
    Create an AWS Organizations Tag Policy with compliance rules for the `ProjectAnalysis` key, which automatically registers the tag for cost allocation.
  4. D
    Modify the Python script to include the `aws:TagKeys` condition inside an IAM Service Control Policy (SCP) to force automatic activation of the tag.

Answer

Access the AWS Billing and Cost Management console from the management account, navigate to Cost Allocation Tags, select the `ProjectAnalysis` tag, and click Activate.
The correct answer is to access the AWS Billing and Cost Management console from the management account, navigate to Cost Allocation Tags, select the `ProjectAnalysis` tag, and click Activate. In AWS Organizations with consolidated billing, user-defined cost allocation tags must be centrally activated by the management (payer) account. Once activated, AWS begins to track costs associated with these tags, allowing them to appear as filters in AWS Cost Explorer.

Step-by-Step Solution

1
Sign in to the AWS Management Console using the credentials for the management (payer) account of the AWS Organization.
Access is granted to organization-wide billing configurations.
Only the management account has the authority to activate cost allocation tags for consolidated billing across all linked member accounts.
2
Navigate to the AWS Billing and Cost Management console, select 'Cost Allocation Tags' from the navigation pane, locate the user-defined tag key `ProjectAnalysis`, select it, and click 'Activate'.
The tag is marked as active for cost allocation.
User-defined tags applied to AWS resources do not automatically function as cost allocation tags. They must be manually activated to begin appearing in billing reports and Cost Explorer.
3
Wait for the active tag to propagate to Cost Explorer, which typically takes up to 24 hours.
The `ProjectAnalysis` tag becomes available as a filter and grouping category in Cost Explorer.
Activation triggers AWS to begin tracking the cost data for resources bearing that tag key from that point forward.

Key Concept

Activation of Cost Allocation Tags in AWS Organizations
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Topics

Cost Allocation Tags and Resource Tagging Strategies

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