How do I troubleshoot Amazon S3 Batch Operations issues?

Hi there, thanks for your question. Two things to try would be confirming that you've 1) added a trust policy so that S3 Batch Operations can assume the IAM role, discussed here: https://docs.aws.amazon.com/AmazonS3/latest/userguide/batch-ops-iam-role-policies.html, and 2) would be to configure a completion report for your job in case the errors are occurring at the object level once the job progresses to the Active phase. That completion report would then display object level error/failure info.