S3 Tags Not Appearing in Tag Editor and Cost Explorer

Question

On 02JAN2025, I tagged my AWS S3 objects with these tags: `order` and `storage_class`. As of 06JAN2025, the `storage_class` tag is not appearing in the Tag Editor console. I have confirmed that the tags are still present on the S3 objects, and I have IAM permissions to view the tags.

And on 03JAN2025, I activated `order` as a Cost Allocation Tag in the Cost Explorer console. As of 06JAN2025, all of my S3 costs are associated with "No tag key: order." Only one of the values for the `order` tag shows up in the Cost Explorer console, but with no associated costs.

What could be causing these issues, and how can I resolve them?

NagaPraveen_B · Answer

According to the official AWS documentation (https://docs.aws.amazon.com/AmazonS3/latest/userguide/CostAllocTagging.html), cost allocation tags can only be applied to S3 buckets and not to individual objects within those buckets. The documentation states, "You can add cost allocation tags to S3 buckets to categorize and track your AWS costs." However, it also mentions, "Unlike all other Amazon S3 resources, tags added to buckets using the Amazon S3 API are not cost allocation tags. To use cost allocation tags, you must activate them in the Billing and Cost Management console."

Gary Mclean · Answer

AWS Tag editor and billing only supports resource tagging and not object tagging. You can tag your buckets but objects will not be reported in Tag Editor or billing reports.

`Cost allocation tags can only be used to label buckets.`

https://docs.aws.amazon.com/AmazonS3/latest/userguide/CostAllocTagging.html

S3 Tags Not Appearing in Tag Editor and Cost Explorer

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