Troubleshooting S3 file upload errors when using AWS access keys

When setting up AWS S3 file uploads using access keys and secret keys, you may encounter various error messages. Here's how to troubleshoot the most common issues: Common Error Messages and Solutions "The requested resource was not found" Error If you see an error like: Failed to create a file in Amazon S3. The app returned "The requested resource /2010-04-01/Accounts/[ID]/Messages/[ID]/Media/[ID] was not found". This error typically indicates that the application cannot retrieve the source media file before attempting to upload it to S3. The issue is usually with the source file URL being invalid or inaccessible, not with your AWS configuration. Permission Denied Errors If you receive a permission error such as: User: arn:aws:iam::[account]:user/[username] is not authorized to perform: s3:PutObject on resource: "arn:aws:s3:::bucket-name/path" because no identity-based policy allows the s3:PutObject action Verify that: Your IAM user has the correct permissions for the target S3 bucket The bucket name in the error matches the bucket you intended to use The application is configured to use the correct bucket name Troubleshooting Steps Verify AWS Configuration: Confirm that your IAM user has the necessary S3 permissions and that the access keys are correctly configured. Check Source File URLs: Ensure that the source file URLs being passed to your workflow are valid and accessible. Validate Bucket Names: Make sure your application is configured to use the correct S3 bucket name that exists in your AWS account. Test Connectivity: Verify that your application can successfully connect to AWS S3 using the provided credentials. In most cases where AWS permissions are properly configured, file upload failures are caused by issues with the source file rather than S3 configuration problems.