Sometimes AWS Configurations need to be edited to enable tags to appear in the billing APIs such as Cost Explorer that Reserved.ai relies on.
If you see that Reserved.ai is not surfacing expected tags in the segment analysis flow a common issue is that cost allocation tags are not activated in your AWS billing account.
To rectify this you can check if your account has activated cost allocation tags & if not then activate them following the tag activation process from AWS.
If you are seeing no tags available to activate in the AWS console you may need to ensure AWS Cost & Usage Reports are also enabled.
If the cost allocation tags are active and still not showing up in Reserved.ai you can can refresh them on the AWS Console following this flow:
Console -> billing and cost console -> navigation -> cost allocation tags -> Refresh
After activating/refreshing tags it can take up to 24 hours for AWS to surface the data in their APIs and for Reserved.ai to reflect the changes in your dashboard.