# variables.json Attributes

Named nodes, each representing a single variable. Each node contains the following attributes:

## variable Attributes

| Attribute         | Required | Description                                                                                                                                                                                                                 |
| ----------------- | -------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `computedValue`   | No       | The computed value for the variable. The computed value is set by the `WaveTemplateConfigurationModifier` implementation.                                                                                                   |
| `description`     | No       | Additional text that appears under the label for more information.                                                                                                                                                          |
| `defaultValue`    | No       | The default value for the variable, if the user doesn’t change the value in the wizard. Can be the most likely value a user would use.                                                                                      |
| `excludeSelected` | No       | Indicates whether values selected for another variable are excluded from the list of values for this variable (`) or not (`). For use with variable types like `SObjectType` or `SObjectFieldType`. The default is `false`. |
| `excludes`        | No       | Allows specific values to be excluded from the picker selections                                                                                                                                                            |
| `label`           | No       | The visible label for the variable in the UI wizard. The format is typically a question like “Do you use product?”.                                                                                                         |
| `required`        | No       | Indicates whether the variable value required in the UI. The default is `false`.                                                                                                                                            |
| `variableType`    | No       | The variable type.                                                                                                                                                                                                          |

## variableType Attributes

| Attribute     | Required | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| ------------- | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `dataType`    | No       | Specifies the data type for a FieldType variable types. The data type value format for `SObjectFieldType` is `xsd:string`. See [Primitive Data Types](https://developer.salesforce.com/docs/atlas.en-us.object_reference.meta/object_reference/primitive_data_types.htm) in the *Salesforce Object Reference* for more values. For `DataLakeObjectFieldType` and `DataModelObjectFieldType`, valid values are `string`, `number`, `date`, and `date_time`.                                                                                                                                                                                                                                                                                                                |
| `fieldType`   | No       | Specifies the field type for a `CalculatedInsightsFieldType` variable. Valid values are `dimension` and `measure`.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
| `enums`       | No       | Specifies a list of values for an enumerated variable type for a `StringType` or `NumberType` variable type.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
| `enumsLabels` | No       | Specifies a list of labels for the enumerated values of a `StringType` or `NumberType` variable only.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| `itemsType`   | No       | Specifies the items type for an `ArrayType` variable. The items type must be a valid variable type.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
| `max`         | No       | Specifies the maximum value for a `NumberType` variable only.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| `min`         | No       | Specifies the minimum value for a `NumberType` variable only.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| `type`        | Yes      | The type of the variable. Valid types are: <ul><li>`ArrayType` (Enumerated)</li><li>`BooleanType` (Enumerated)</li><li>`CalculatedInsightFieldType` (Object)</li><li>`CalculatedInsightType` (Object)</li><li>`ConnectorType` (String)</li><li>`DataLakeFieldObjectType` (Object)</li><li>`DataLakeObjectType` (Object)</li><li>`DataModelFieldObjectType` (Object)</li><li>`DataModelObjectType` (Object)</li><li>`DatasetAnyFieldType` (Object)</li><li>`DatasetDateType` (Object)</li><li>`DatasetDimensionType` (Object)</li><li>`DatasetMeasureType` (Object)</li><li>`DatasetType` (Object)</li><li>`DateTimeType`</li><li>`NumberType` (Enumerated)</li><li>`SObjectFieldType` (Object)</li><li>`SObjectType` (Object)</li><li>`StringType` (Enumerated)</li></ul> |

**See Also**

- [Edit variables.json](/docs/analytics/bi-dev-guide-wave-templates/guide/bi-templatesdev-edit-variables-json.md)