Recently Amazon S3 Team announced
suppor for Cost Allocation Reports, a new AWS billing feature that enables you to organize and track your AWS costs using tagging.
A tag is a key-value pair that represents a label you assign to a bucket. In your AWS bill, costs are organized by tags you define.
You may define multiple cost allocation tags for your buckets. After you define the tags, you need to
log in to the AWS Portal, sign up for billing reports, and tell the AWS billing system which tag keys
are meaningful for cost allocation purposes.
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