# CustomStepDetails
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Each step type has its own `StepDetails` structure.

## Contents
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 ** Name **   <a name="TransferFamily-Type-CustomStepDetails-Name"></a>
The name of the step, used as an identifier.  
Type: String  
Length Constraints: Minimum length of 0. Maximum length of 30.  
Pattern: `[\w-]*`   
Required: No

 ** SourceFileLocation **   <a name="TransferFamily-Type-CustomStepDetails-SourceFileLocation"></a>
Specifies which file to use as input to the workflow step: either the output from the previous step, or the originally uploaded file for the workflow.  
+ To use the previous file as the input, enter `${previous.file}`. In this case, this workflow step uses the output file from the previous workflow step as input. This is the default value.
+ To use the originally uploaded file location as input for this step, enter `${original.file}`.
Type: String  
Length Constraints: Minimum length of 0. Maximum length of 256.  
Pattern: `\$\{(\w+.)+\w+\}`   
Required: No

 ** Target **   <a name="TransferFamily-Type-CustomStepDetails-Target"></a>
The ARN for the Lambda function that is being called.  
Type: String  
Length Constraints: Minimum length of 0. Maximum length of 170.  
Pattern: `arn:[a-z-]+:lambda:.*`   
Required: No

 ** TimeoutSeconds **   <a name="TransferFamily-Type-CustomStepDetails-TimeoutSeconds"></a>
Timeout, in seconds, for the step.  
Type: Integer  
Valid Range: Minimum value of 1. Maximum value of 1800.  
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/transfer-2018-11-05/CustomStepDetails) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/transfer-2018-11-05/CustomStepDetails) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/transfer-2018-11-05/CustomStepDetails)