# Start workflow

> `UiPath.K2.Activities.StartWorkflowActivity`

`UiPath.K2.Activities.StartWorkflowActivity`

Enables you to connect to your K2 Platform, handles the login, starts a K2 workflow with the specified parameters and includes a wizard for easy configuration. The body of the activity contains a **Launch Wizard** button so that you can customize your setting at any time.

## Properties

### Common

* **DisplayName** - The display name of the activity.

### Input

* **Parameters** - The parameters that can be passed to the K2 workflow at startup. If you use the workflow they will be retrieved from the K2 platform.
  :::note
  The Parameters accept only String, Integer, Double, Boolean and Datetime variables.
  :::
* **Password** - The password for the K2 service.
* **Service URL** - The instance URL for the K2 service.
* **Username** - The username for the K2 service.
* **Workflow ID** - The ID of the K2 workflow to be started.
  :::note
  Note that OAuth must be enabled on your K2 account in order to authenticate the activity. See [K2's How-to Guide](https://help.k2.com/kb002436#OAuthExtension) for help setting this up.
  :::

### Misc

* **Private** - If selected, the values of variables and arguments are no longer logged at Verbose level.

### Output

* **Workflow instance ID** - The ID of the K2 instance that was started.

## Start wizard

The wizard allows you to configure the activity easily. The wizard can be accessed from the button in the body of the activity.

![Start Workflow wizard configuration screen](https://dev-assets.cms.uipath.com/assets/images/marketplace/marketplace-docs-image-33959-44bc58c2-bd27285b.webp)

1. **Service URL** - Specify the K2 endpoint.
2. **Username Field** - Specify the K2 account username.
3. **Password Field** - Specify the K2 account password.
4. **Workflows Selection** - Specify which workflow you wish to start. The workflows are created and defined inside the K2 platform.
5. **Load Button** - Once all the connection data has been inserted clicking **Load** will connect to the K2 server and generate the available workflows in the **Workflow Selection** control item.
6. **Edit Argument Button** - If the connection was successful and you select a workflow, the parameters for that workflow are retrieved from the K2 platform workflow. On click a pop up will open that will allow you to edit the input arguments for the K2 workflow.
7. **Ok Button** - Once the desired configuration data has been inserted the Ok button will close the wizard and update the property panel.
:::note
Variables are not supported inside the wizard.
:::