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# Resource: Function Types

# Type: Function Type Object

# Link: https://dev.wix.com/docs/api-reference/business-management/functions/function-types/function-type-object.md

## Description: A function type defines the integration point where your function's custom logic runs.

## Schema:

```json
 Type: Function Type Object | type: FunctionType
 Description: A function type defines the integration point where your function's custom logic runs.
       - name: id  | type: string | description: Function type ID.
           - name: value  | type: string | description: 
       - name: function  | type: Function | description: Settings for functions created from this function type.
           - name: definitions  | type: Array<Definition> | description: Function method definitions that specify when and how the function executes.
               - name: method  | type: string | description: Method name.
               - name: input  | type: Input | description: Function input schema and UI definition.
               - name: output  | type: Output | description: Function output schema and UI definition.
               - name: triggerId  | type: string | description: ID of the [trigger](https://dev.wix.com/docs/api-reference/business-management/automations/triggers/about-triggers.md) that activates this function definition.
           - name: configuration  | type: Configuration | description: Function configuration including service plugin settings and behavior options.
               - name: multipleInstancesAllowed  | type: boolean | description: Whether the function can be implemented multiple times on a single site.
               - name: customInitialPreset  | type: CustomInitialPreset | description: Initial preset to apply when building a function from scratch.
               - name: scope  | type: string | description: Scope of the function when multiple_instances_allowed is false
               - name: entityScopeErrorMessage  | type: string | description: Error message to display when entity scope validation fails.
               - name: servicePlugin  | type: ServicePlugin | description: Service plugin configuration for function integration with business solutions.
           - name: description  | type: Description | description: Function descriptions, such as text to display in a site dashboard's function builder.
               - name: aboutDescription  | type: string | description: Explains what the function does.
               - name: howItWorksDescription  | type: string | description: Explains how the function works.
               - name: outcomeDescription  | type: string | description: Expected outcome when the function runs.
               - name: representativeImage  | type: Image | description: Function type's image displayed in the function catalog and builder.
               - name: builderlessTemplateSelectionModalTitle  | type: string | description: Title of the builderless function template selection modal.
               - name: builderlessTemplateSelectionModalSubtitle  | type: string | description: Subtitle of the builderless function template selection modal.
       - name: appDefId  | type: string | description: ID of the Wix app that defines this function type.
       - name: appName  | type: string | description: Display name of the Wix app that defines this function type.
       - name: functionExtensionName  | type: string | description: Display name of the function type.

```