--- title: "Campaign Event Parameter" slug: "campaign-event-parameter" updated: 2020-04-16T20:30:05Z published: 2020-04-16T20:30:05Z canonical: "onpremises.webtrends.help/campaign-event-parameter" --- > ## Documentation Index > Fetch the complete documentation index at: https://onpremises.webtrends.help/llms.txt > Use this file to discover all available pages before exploring further. # Campaign Event Parameter #### WT.mc_ev `WT.mc_ev=EventType` This parameter identifies an ad event type. Webtrends Analytics and Visitor Data Mart recognize the following value: `WT.mc_ev=click` identifies an ad clickthrough event. Webtrends Analytics Considerations Webtrends Analytics does not currently provide preconfigured custom reports that use the click value. However, you can also specify a custom value to identify a custom event type, create a custom report filter based on this value, and apply it to a custom report.