Something which is often overlooked is that transitioning objects in S3 to another storage class using lifecycle policies is a one-way operation. If you later n

Something which is often overlooked is that transitioning objects in S3 to another storage class using lifecycle policies is a one-way operation. If you later notice that the chosen storage class doesn't fit or your use case changes, you can only go "forward" using lifecycle policies and not "back" to e.g. "S3 Standard" [1]. Going "back" is therefore a quite costly and cumbersome operation, as you have to apply the change of the storage class to each object individually. [1]: https://docs.aws.amazon.com/AmazonS3/latest/userguide/lifecycle-transition-general-considerations.html https://docs.aws.amazon.com/AmazonS3/latest/userguide/lifecy...