Client - the business entity, company or organisation, that pays for campaigns. Usually either a media agency, or a direct client advertiser.
Advertiser - the advertiser / brand. Belongs to a specific client.
Campaign - a marketing campaign, belonging to a specific advertiser
Campaigns that have been ended for more than four weeks will automatically be set as "terminated" and not listed in the default campaign list. To show terminated campaigns, use the toggle button above the table.
To un-terminate a campaign, use the actions button in the top right campaign view.