What is an S3 Storage Lens export manifest? - Amazon Simple Storage Service
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What is an S3 Storage Lens export manifest?

S3 Storage Lens daily metrics exports in general-purpose buckets may be split into multiple files due to the large amount of data aggregated. The manifest file manifest.json describes where the metrics export files for that day are located. Whenever a new export is delivered, it's accompanied by a new manifest. Each manifest contained in the manifest.json file provides metadata and other basic information about the export.

The manifest information includes the following properties:

  • sourceAccountId – The account ID of the configuration owner.

  • configId – A unique identifier for the dashboard.

  • destinationBucket – The destination bucket Amazon Resource Name (ARN) that the metrics export is placed in.

  • reportVersion – The version of the export.

  • reportDate – The date of the report.

  • reportFormat – The format of the report.

  • reportSchema – The schema of the report.

  • reportFiles – The actual list of the export report files that are in the destination bucket.

Manifest destination path example:

user-defined-prefix/StorageLens/111122223333/example-dashboard-configuration-id/V_1/manifests/dt=2025-03-18/manifest.json

The following example shows a manifest.json file for a CSV-formatted Storage Lens default metrics report:

{  
   "sourceAccountId": "111122223333",  
   "configId": "example-dashboard-configuration-id",  
   "destinationBucket": "arn:aws-cn:s3:::amzn-s3-demo-destination-bucket",  
   "reportVersion": "V_1",  
   "reportDate": "2025-07-15",  
   "reportFormat": "CSV",  
   "reportSchema": "version_number,configuration_id,report_date,aws_account_number,aws_region,storage_class,record_type,record_value,bucket_name,metric_name,metric_value",  
   "reportFiles": [  
        {  
            "key": "DestinationPrefix/StorageLens/111122223333/example-dashboard-configuration-id/V_1/reports/dt=2025-07-15/12345678-1234-1234-1234-123456789012.csv",  
            "size": 1603959,  
            "md5Checksum": "2177e775870def72b8d84febe1ad3574"  
        }  
   ]  
}

The following example shows a manifest.json file for a CSV-formatted Storage Lens expanded prefixes metrics report:

{  
   "sourceAccountId": "111122223333",  
   "configId": "example-dashboard-configuration-id",  
   "destinationBucket": "arn:aws-cn:s3:::amzn-s3-demo-destination-bucket",   
   "reportVersion": "V_1",  
   "reportDate": "2025-11-03",  
   "reportFormat": "CSV",  
   "reportSchema": "version_number,configuration_id,report_date,aws_account_number,aws_region,storage_class,record_type,record_value,bucket_name,metric_name,metric_value",  
   "reportFiles": [  
        {  
            "key": "DestinationPrefix/StorageLensExpandedPrefixes/111122223333/example-dashboard-configuration-id/V_1/reports/dt=2025-11-03/EXAMPLE1234-56ab-78cd-90ef-EXAMPLE11111.csv",  
            "size": 1603959,  
            "md5Checksum": "2177e775870def72b8d84febe1ad3574"  
        }  
      ]  
}

The following example shows a manifest.json file for a Parquet-formatted Storage Lens default metrics report:

{  
   "sourceAccountId": "111122223333",  
   "configId": "example-dashboard-configuration-id",  
   "destinationBucket": "arn:aws-cn:s3:::amzn-s3-demo-destination-bucket",  
   "reportVersion": "V_1",  
   "reportDate": "2025-11-03",  
   "reportFormat": "Parquet",  
   "reportSchema": "message s3.storage.lens { required string version_number; required string configuration_id; required string report_date; required string aws_account_number; required string aws_region; required string storage_class; required string record_type; required string record_value; required string bucket_name; required string metric_name; required long metric_value; }",  
   "reportFiles": [  
      {  
         "key": "DestinationPrefix/StorageLens/111122223333/example-dashboard-configuration-id/V_1/reports/dt=2025-11-03/bd23de7c-b46a-4cf4-bcc5-b21aac5be0f5.par",  
         "size": 14714,  
         "md5Checksum": "b5c741ee0251cd99b90b3e8eff50b944"  
      }  
   ]  
}

The following example shows a manifest.json file for a Parquet-formatted Storage Lens expanded prefixes metrics report:

{  
   "sourceAccountId": "111122223333",  
   "configId": "example-dashboard-configuration-id",  
   "destinationBucket": "arn:aws-cn:s3:::amzn-s3-demo-destination-bucket",  
   "reportVersion": "V_1",  
   "reportDate": "2025-11-03",  
   "reportFormat": "Parquet",  
   "reportSchema": "message s3.storage.lens { required string version_number; required string configuration_id; required string report_date; required string aws_account_number; required string aws_region; required string storage_class; required string record_type; required string record_value; required string bucket_name; required string metric_name; required long metric_value; }",  
   "reportFiles": [  
      {  
         "key": "DestinationPrefix/StorageLensExpandedPrefixes/111122223333/example-dashboard-configuration-id/V_1/reports/dt=2025-11-03/bd23de7c-b46a-4cf4-bcc5-b21aac5be0f5.par",  
         "size": 14714,  
         "md5Checksum": "b5c741ee0251cd99b90b3e8eff50b944"  
      }  
   ]  
}

You can configure your metrics export to be generated as part of your dashboard configuration in the Amazon S3 console or by using the Amazon S3 REST API, Amazon CLI, and SDKs.