Token is already in use and cannot be deleted

[Anonymous]

I created few tokens at Folder level and used tokens for campaign request to send emails and  thought of removing one of these token from the folder and creating at program level. But when i try to delete i am getting the following message. 


Token is already in use and cannot be deleted

I am sure, i deleted all teh occurances of this token in email template.  Is there any dependency on anything to delete this token and how do i find that ?

Much appreciated your help.