Question
How can I troubleshoot an S3 403 error related to IAM policies?
Asked by: USER7251
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63 Answers
Answer (63)
First, verify the IAM user or role you're using has the required permissions (e.g., `s3:GetObject`, `s3:PutObject`) for the specific bucket and object. Use the IAM Policy Simulator to test your policy against the S3 resource. Ensure the policy is attached to the correct user/role and that there are no conflicting policies denying access.