aws backup for ec2(AMIs) vs snapshot cost

Question

Team help - AWS backups configured in my evn where in we configured aws backups for EC2(AMIs created),EBS, S3,EFS,RDS. 
1) when check cost explorer using AWS Backup i see 50k per month - i have no idea if this also include EC2(AMIs) costing. 
2) i came to know that AMIs internally create EBS snapshots and usage/cost can be find only thru Billing report and does not come under AWS backups costing- i see costing in billing is about 30k

-if above is right i want to know if 30k in part of AWS backups  which is costing 50k?
-or do i need to consider 30K is a separate bill only for ec2 that is excluded from 50K ?

Answer

Hello.

I suspect that EC2 is not included in the 50k because it does not support full management with AWS Backup.  
https://docs.aws.amazon.com/aws-backup/latest/devguide/metering-and-billing.html#metering  
> When a resource type supports full AWS Backup management, charges for AWS Backup activity (including storage, data transfers, restores, and early deletion) appear in the "Backup" section of your Amazon Web Services bill. For a list of services that support full AWS Backup management, see the Full AWS Backup management section in the [Feature availability by resource](https://docs.aws.amazon.com/aws-backup/latest/devguide/whatisbackup.html#features-by-resource) table.
> 
> When a resource type does not support full AWS Backup management, some of your AWS Backup activity, such as storage costs for your backups, might be and billed by the respective AWS service.

Just to be safe, I think it would be a good idea to open a case with AWS Support under "Account and billing".  
https://docs.aws.amazon.com/awssupport/latest/user/case-management.html

aws backup for ec2(AMIs) vs snapshot cost

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