> For the complete documentation index, see [llms.txt](https://resources.less.tech/less-tech/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://resources.less.tech/less-tech/modelling/action-guides/new-columns/row-id.md).

# Row ID

Add a Row ID column to your dataset

<figure><img src="https://1596277999-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FaSJL6Od4KuV8hrdCZbXp%2Fuploads%2Fxe9RWKY8k33etuE3c3Zr%2Fanimation_500_labn6j25.gif?alt=media&amp;token=3edc835a-45eb-4e42-a368-87ee27674c53" alt=""><figcaption><p>The Row ID Action</p></figcaption></figure>

This Action is very simple. It only adds a row ID column to your existing data set.&#x20;