Use the Marketing tab on the Account, Contact or Lead Detail Views, to see the campaigns that targeted a contact or lead. You can also add or edit campaign response information, or remove a contact or lead from future stages of the campaign.
The Marketing tab displays the following campaign response information:
To view campaign response for the current record
To add a campaign response
To delete a response from a campaign
The response still appears on the tab, but the status is changed to "Removed", the Response Date is cleared, and the response is no longer included in any response calculations.
To remove a target from further stages of the campaign