This article shows you how to delete a custom attribute on the dashboard
To delete custom attributes you require admin rights.
To delete a custom attribute left-click the account button in the top-right corner of the window and select Team settings from the drop-down menu.
Then open the Settings and select Custom attributes in the menu on the left side of the window.
The custom attributes menu will open showing you all previously created custom attributes.
Tick the checkbox next to one or more labels you wish to delete and left-click the “Delete selected” button on the right side of the window.
Alternatively, click the button with the three dots on the right side of the custom attribute you wish to delete and select “Delete custom attribute”.
Deleting a custom attribute can’t be undone.