You can delete a contact by using either the user interface or DeleteContactFromList web service. You can delete unattempted as well as processed contacts from a running campaign. When you delete a contact from the user interface, the web interface sends a Delete Contact event to the campaign manager along with the contact ID of the deleted contact. If the contact is a part of filtered records, the Campaign manager removes the contact from the list of filtered records. If POM has already dialed the contact through the campaign, the count of Un-attempted contacts does not decrease. When you delete a contact that POM does not attempt through the job, POM decreases the count of Filtered and Un-attempted contacts on the real time monitor screen. You cannot delete the contacts that are “in progress”. Contacts are “in progress” if they meet any of the following conditions: