> For the complete documentation index, see [llms.txt](https://guide.valpashotels.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://guide.valpashotels.com/resolving-a-prevention-task/4.-scan-the-qr-code-of-the-cassette.md).

# 4. Scan the QR code of the cassette

This is an important step: you need to identify the cassette that triggered the prevention task.\
To do so, use the QR code scanner in the Valpas app to scan the sticker on the side of the cassette.

<figure><img src="/files/jy0QFH3KwRpgqosGK98K" alt=""><figcaption></figcaption></figure>