Editing a custom dimension

You can edit the definition, formatting, and information about a custom dimension after you create it.

1. In the field picker, expand the Custom Fields section.
2. Do one of the following:
   1. Hover over the field you want to duplicate and select More > Edit.
   2. If the field is already selected in the Data table, click the Gear button and select Edit.
3. Change the custom dimension definition as necessary in the Expression box.
4. In the Format drop-down list, select a new format if necessary.
5. In the Name text box, enter a new name if necessary.
   The name appears in the field picker and in the date table. If you have changed a custom field's definition, consider modifying the name to match.
6. Click + Add Description to add an optional description up to 255 characters in the Description box to give other users more context or information about the custom measure.
7. Click Save.