# Action App

> Pause a workflow and assign a task to a human in an app with its own interface, built in App Studio, Studio Web, or as a coded action app.

**Action App** pauses the workflow and assigns a task to a human in an app with its own interface. The human works in the app, and the workflow continues with what they submit. It's in the **Human** category of the **Add node** panel.

The app is built separately: visually in UiPath App Studio or Studio Web, or as a coded action app, a custom React or Angular application. [About Coded Action Apps](../../../../apps/automation-cloud/latest/user-guide-ca/about-coded-action-apps.md) describes coded apps.

## When to use Action App vs Quick Form

| | Quick Form | Action App |
|---|---|---|
| Interface | Built on the node, saved with the workflow | A separate app, deployed on its own |
| Reuse across workflows | Yes, by copying and pasting the form's JSON | Yes |
| Cost | No additional units, no app needed | Requires deploying the app |
| Layout | Multi-column and multi-width layouts | Full control |
| Data shown to the human | Values from the workflow only | Also assets, buckets, connections, and Data Fabric, through the app |
| Testing | In debug mode, on the canvas | Build, deploy, then run |
| Skills needed | None | App Studio, or React or Angular for coded apps |

:::tip
Start with a [Quick Form](node-quick-form.md). Move to an Action App when you need to reuse the same interface across workflows, show data the workflow doesn't already carry, or build an interface a form can't express.
:::

## Set it up

| Field | Required | Description |
|---|---|---|
| **Assignment criteria** | Yes | Who gets the task, for example **Single User** and the user's name. [Quick Form](node-quick-form.md#assignment-criteria) describes the options, which are the same for both nodes. |
| **Delivery channels** | — | Where the task appears, such as Action Center, email, Slack, or Microsoft Teams. Only an administrator can change them. |
| **Action App** | Yes | The app to show the human. Select it from the apps available to you. |
| **Inputs** | Depends on the app | The values the app expects, with their types. Set each one to a value from earlier nodes, using **{ } Insert**. |

## Next steps

- [Quick Form](node-quick-form.md): build a simpler form directly on the node.