Minimum permission policy for Synology CloudSync s3 source backup job

policy.json

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "AllowSepcificBucket",
            "Effect": "Allow",
            "Action": [
                "s3:Get*",
                "s3:List*"
            ],
            "Resource": [
                "arn:aws:s3:::bucketname",
                "arn:aws:s3:::bucketname/*"
            ]
        },
        {
            "Sid": "AllowAllBasics",
            "Effect": "Allow",
            "Action": [
                "s3:ListAllMyBuckets",
                "s3:HeadBucket",
                "s3:ListObjects",
                "s3:GetBucket*"
            ],
            "Resource": "arn:aws:s3:::*"
        }
    ]
}

Thanks, this saved me time!