---
title: "activate on scan · RUAL Documentation"
description: "This activates the on scan listener if it was previously deactivated"
canonical: https://docs.rual.nl/block-types/User Interface/uicomponent_onscan_activate
language: en
---

# activate on scan

This block is part of the [`User Interface`](https://docs.rual.nl/block-types/User%20Interface) group and was last modified in core [`v13.0.2`](https://docs.rual.nl/core-versions/130002).

This activates the on scan listener if it was previously deactivated

- flow `flow`

### Core Releases