I\'m doing some work for a client that has 2 separate AWS accounts. We need to move all the files in a bucket on one of their S3 accounts to a new bucket on the 2nd account.
I would suggest using cloudberry s3 explorer , as a simple solution to get things moving quickly. Also it allows you to make use of internal aws bandwidth free transfer services.
You can also use the cloudberry sdk tools to integrate into your apps.