When users set a bucket policy, the Action or NotAction value in a single policy entry is invalid, such as empty values or formats that do not match the request protocol.

Example

When configuring the bucket policy, the Action field in a single policy entry is empty.

PUT /?policy HTTP/1.1​
Host: <Bucket name>.<TOS endpoint>​
Date: Fri, 30 Jul 2021 13:59:18 GMT​
Authorization: authorization xxx​
​
{​
    "Version": "2012-10-17",​
    "Statement": [​
        {​
            "Sid": "1",​
            "Effect": "Allow",​
            "Action": [""],​
            "Principal": "*",​
            "Resource": ["trn:tos:::bucketname/*"]​
        }        ​
    ]​
}​

Solution

Refer to the Bucket Policy Template and Parameter Description to correctly construct the bucket policy and ensure the Action or NotAction values in a single policy entry are valid.

Last updated: 2025.10.11 17:59:23

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