You can temporarily stop individual ad items from being served.

To pause an ad item:

1. Go to the section of the campaign (Your AdButler > Advertisers > Your Advertiser > Your Campaign) or zone (Your AdButler > Publishers > Your Publisher > Your Zone) to which the ad item is assigned.
2. In the table of ad items, locate the ad item you wish to pause, then click on the green Active status under the Status column. The button should change to a red Paused status.

The ad item is now paused and will no longer be served. To make the ad item active, simply click on the red Paused status to change it back to Active.