CreatePredictorBacktestExportJob - Amazon Forecast


Exports backtest forecasts and accuracy metrics generated by the CreateAutoPredictor or CreatePredictor operations. Two folders containing CSV or Parquet files are exported to your specified S3 bucket.

The export file names will match the following conventions:


The <ExportTimestamp> component is in Java SimpleDate format (yyyy-MM-ddTHH-mm-ssZ).

You must specify a DataDestination object that includes an Amazon S3 bucket and an AWS Identity and Access Management (IAM) role that Amazon Forecast can assume to access the Amazon S3 bucket. For more information, see Set Up Permissions for Amazon Forecast.


The Status of the export job must be ACTIVE before you can access the export in your Amazon S3 bucket. To get the status, use the DescribePredictorBacktestExportJob operation.

Request Syntax

{ "Destination": { "S3Config": { "KMSKeyArn": "string", "Path": "string", "RoleArn": "string" } }, "Format": "string", "PredictorArn": "string", "PredictorBacktestExportJobName": "string", "Tags": [ { "Key": "string", "Value": "string" } ] }

Request Parameters

The request accepts the following data in JSON format.


The destination for an export job. Provide an S3 path, an AWS Identity and Access Management (IAM) role that allows Amazon Forecast to access the location, and an AWS Key Management Service (KMS) key (optional).

Type: DataDestination object

Required: Yes


The format of the exported data, CSV or PARQUET. The default value is CSV.

Type: String

Length Constraints: Maximum length of 7.

Pattern: ^CSV|PARQUET$

Required: No


The Amazon Resource Name (ARN) of the predictor that you want to export.

Type: String

Length Constraints: Maximum length of 256.

Pattern: arn:([a-z\d-]+):forecast:.*:.*:.+

Required: Yes


The name for the backtest export job.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 63.

Pattern: ^[a-zA-Z][a-zA-Z0-9_]*

Required: Yes


Optional metadata to help you categorize and organize your backtests. Each tag consists of a key and an optional value, both of which you define. Tag keys and values are case sensitive.

The following restrictions apply to tags:

  • For each resource, each tag key must be unique and each tag key must have one value.

  • Maximum number of tags per resource: 50.

  • Maximum key length: 128 Unicode characters in UTF-8.

  • Maximum value length: 256 Unicode characters in UTF-8.

  • Accepted characters: all letters and numbers, spaces representable in UTF-8, and + - = . _ : / @. If your tagging schema is used across other services and resources, the character restrictions of those services also apply.

  • Key prefixes cannot include any upper or lowercase combination of aws: or AWS:. Values can have this prefix. If a tag value has aws as its prefix but the key does not, Forecast considers it to be a user tag and will count against the limit of 50 tags. Tags with only the key prefix of aws do not count against your tags per resource limit. You cannot edit or delete tag keys with this prefix.

Type: Array of Tag objects

Array Members: Minimum number of 0 items. Maximum number of 200 items.

Required: No

Response Syntax

{ "PredictorBacktestExportJobArn": "string" }

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.


The Amazon Resource Name (ARN) of the predictor backtest export job that you want to export.

Type: String

Length Constraints: Maximum length of 256.

Pattern: arn:([a-z\d-]+):forecast:.*:.*:.+



We can't process the request because it includes an invalid value or a value that exceeds the valid range.

HTTP Status Code: 400


The limit on the number of resources per account has been exceeded.

HTTP Status Code: 400


There is already a resource with this name. Try again with a different name.

HTTP Status Code: 400


The specified resource is in use.

HTTP Status Code: 400


We can't find a resource with that Amazon Resource Name (ARN). Check the ARN and try again.

HTTP Status Code: 400

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: