# Add a UUID column
<a name="transforms-uuid"></a>

When you add a *UUID* (Universally Unique Identified) column, each row will be assigned a unique 36-character string.

**To add a *UUID* transform node in your job diagram**

1. Open the Resource panel and then choose **UUID** to add a new transform to your job diagram. The node selected at the time of adding the node will be its parent.

1. (Optional) On the **Node properties** tab, you can enter a name for the node in the job diagram. If a node parent is not already selected, then choose a node from the **Node parents** list to use as the input source for the transform.

1. (Optional) On the **Transform** tab, you can customize the name of the new column. By default it will be named "uuid".