How do I fix the error "Error: Invalid principal in policy" when editing my S3 bucket’s policy?

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Published Feb 17, 2025

Skip directly to the demo: 0:32

For more details see the Knowledge Center article with this video: https://repost.aws/knowledge-center/s3-invalid-principal-in-policy-error
Chih-Hui shows you how to fix the error "Error: Invalid principal in policy" when editing your S3 bucket’s policy.

0:00 Introduction
0:32 Additional Information
1:32 Review your bucket policy
2:00 Check for IAM user or role issues
2:36 Check for region specific permissions
2:54 Closing

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