> ## Documentation Index
> Fetch the complete documentation index at: https://docs.useparagon.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Update Application



## OpenAPI

````yaml /actionkit/openapi.json POST /projects/{project_id}/tools/#GREENHOUSE_UPDATE_APPLICATION
openapi: 3.0.0
info:
  title: ActionKit Tools API
  version: 1.0.0
servers:
  - url: https://actionkit.useparagon.com
    description: US Cloud
security: []
paths:
  /projects/{project_id}/tools/#GREENHOUSE_UPDATE_APPLICATION:
    post:
      summary: Update Application
      parameters:
        - name: project_id
          in: path
          required: true
          schema:
            type: string
            description: >-
              Your Paragon Project ID. You can copy your Project ID from your
              dashboard URL or by clicking Copy Project ID under the Environment
              switcher.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                tool:
                  type: string
                  default: GREENHOUSE_UPDATE_APPLICATION
                parameters:
                  type: object
                  properties:
                    applicationId:
                      type: string
                      description: >-
                        Application ID : The ID of the application to update.
                        (example: "5077244006")
                    customFields:
                      type: object
                      description: |-
                        Custom Fields (example: "{ 
                          "id": 123, 
                          "value": "some value" 
                        }")
                      properties: {}
                    sourceId:
                      type: string
                      description: >-
                        Source ID : The ID of the source to be credited for this
                        application (example: "7")
                    referrer:
                      type: object
                      description: >-
                        Referrer : An object representing the referrer (example:
                        "{
                          "type": "id",
                          "value": 770
                        }")
                      properties: {}
                    additionalFields:
                      type: object
                      description: >-
                        Additional Fields : Specify additional fields to include
                        on this application data as JSON. For example, you may
                        associate initial_stage_id here. See the docs
                        (https://developers.greenhouse.io/harvest.html?shell#post-add-application-to-candidate-prospect)
                        for available fields. (example: "{
                          "initial_stage_id": 2708728
                        }")
                      properties: {}
                  required:
                    - applicationId
                  x-integration: greenhouse
              required:
                - tool
                - parameters
      responses:
        '200':
          description: Success
      security:
        - BearerAuth: []
components:
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: >-
        Your [Paragon User
        Token](/getting-started/installing-the-connect-sdk#setup) (JWT), which
        you can generate using your project's signing keys.

````