---
schema_version: "1"
id: 9a19765002d9f6ad321e3fe82380c01ede8d52b7d46b3a290371ffcba83b00f4
title: ExtractParameterDescription
collection: developer
version: current
locale: en-us
portal_url: https://docs.salesforce.com/developer/current/en-us/marketing-cloud/guides/mc-apis/extractparameterdescription.md
canonical_url: https://developer.salesforce.com/docs/marketing/marketing-cloud/guide/extractparameterdescription.html
source_site: developer.salesforce.com
content_type: documentation
content_hash: 495b94e5172ea04198906961677b5b870da14fb5abd9c142bf4d1b93064cc068
products:
  - Marketing Cloud Engagement APIs and Programmatic Languages
  - Marketing Cloud
---
# ExtractParameterDescription

Defines the parameters in an extract.

## Properties

| Name           | Data Type                                                      | Description                                                                                                                                                                                                                                                                                                                                                                                           |
| -------------- | -------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `DataType`     | [ExtractParameterDataType](https://developer.salesforce.com/docs/marketing/marketing-cloud/guide/extractparameterdatatype.md) object | This has been deprecated. Use ValueType. (PropertyDefinition) The data type of the parameter to pass to the Data Extract. Use the data type to dynamically build a user interface with some basic data validation. (ExtractParameterDescription).                                                                                                                                                     |
| `DefaultValue` | String                                                         | The default value for a data extension field if no value is supplied. Include `Now()` as the default value to have the field default to today’s date. Used by `ExtractParameterDescription` as the default value for the parameter if not supplied when a data extract is executed. Used by `PropertyDefinition` if the default value for the attribute if not supplied for a data profile attribute. |
| `DropDownList` | String                                                         | Specifies the multiple potential values for a dropdown list in an extract parameter.                                                                                                                                                                                                                                                                                                                  |
| `IsOptional`   | Boolean                                                        | Indicates whether a parameter is optional.                                                                                                                                                                                                                                                                                                                                                            |
| `Name`         | String                                                         | Name of the object or property.                                                                                                                                                                                                                                                                                                                                                                       |

## Related Items

- [ExtractParameter](https://developer.salesforce.com/docs/marketing/marketing-cloud/guide/extractparameter.md)
- [ExtractParameterDataType](https://developer.salesforce.com/docs/marketing/marketing-cloud/guide/extractparameterdatatype.md)