How do I troubleshoot the error "You don't have permissions to edit bucket policy" when I try to modify a bucket policy in Amazon S3?

https://repost.aws/knowledge-center/s3-access-denied-bucket-policy

s3:
s3:GetBucketPolicy
s3:PutBucketPolicy

Error: Error putting S3 policy: AccessDenied: Access Denied

• aws_s3_bucket_policy
• AWS S3 policies: s3:, S3 read-write access to a certain bucket, s3:ListBucket, s3:ListAllMyBuckets