You can quickly find the campaign a specific lead belongs to by following these steps. This should be helpful when you're trying to figure out the campaign(s) a specific lead belongs to.
- Input the email address in the search bar in the Campaigns tab. 
- After entering an email address, the campaign where this contact was imported will appear. 
You can also search for a specific lead in the CRM -> All Leads section to identify which campaign the lead belongs to.

