How to create a custom dimension in Google Analytics (Universal)?
- Sign in to Google Analytics.
- Click Admin, and navigate to the property to which you want to add custom dimensions.
- In the Property column, click Custom Definitions > Custom Dimensions.
- Click New Custom Dimension.
- Add a Name clickio_layout_id.
- Select the Scope Sessions.
- Check the Active box to start collecting data.
- Click Create.
- Inform your Clickio manager specifying the index of the clickio_layout_id custom dimension.