Data Transfers · Paired devices and plan storage
How do I transfer files to an Amazon S3 bucket?
Short answer: Connect the bucket under More → Connect Accounts… (Bucket Storage), then pick it as the Destination in New Transfer and choose a folder or its root. The bucket name comes first in the path.
First connect the bucket as an account under More → Connect Accounts… (it's listed as Bucket Storage), entering your access key, secret and bucket. Then in New Transfer, choose that account as the Destination with the cloud button and pick a folder inside it — or use its root.
On a bucket account, the bucket name comes first in the path. If you type a path by hand and the bucket name is wrong or missing, the transfer fails with "the S3 bucket couldn't be found"; opening the account's settings and filling in its Bucket field fixes it.
Related: “S3 bucket couldn't be found” · Cloud accounts