Resource tags details
You can use the resource columns in Amazon Cost and Usage Reports to find information about the specific resources covered by a line item. These columns include user-defined cost allocation tags. Examples include the following:
resourceTags/user:creator
Use a user:Creator tag to track which user created a resource.
resourceTags/user:name
Use a user:Name tag to track which resources are associated with a specific user.
resourceTags/user:owner
Use a user:Owner tag to track which user owns a resource.
resourceTags/user:purpose
Use a user:Purpose tag to track why a resource was created.