I've developed an application that uploads files to an S3 bucket. Subsequently, I transfer these files to a Micro account using a Glue job, which assumes IAM roles for access and facilitates the file transfer between S3 buckets in different AWS accounts within the same region.
My concern is whether there is a cost associated with copying files from one bucket to another, especially when the buckets belong to two distinct AWS accounts. I came across information about the cost of file replication in S3, such as "S3 Cross-Region Replication, Same-Region Replication, and Replication Time Control," but I'm uncertain if these costs are applicable to the described operation.
For further details, I referred to the AWS S3 pricing page: https://aws.amazon.com/s3/pricing/