Campaign engine ID
The identifier that an engine creates and assigns to a campaign. Note that DoubleClick Search (DS) creates its own ID for each campaign that it manages.Add this column to a report
Navigate to an advertiser and click the Campaigns tab.
Optionally navigate to a lower scope and click the Campaigns, Ad groups, Ads, or Keywords tab.
Click the Columns button above the performance summary graph.
Next to Available columns, type the column name in the search box and press the Enter key.
Click + next to the column name in the Available columns list.