In MarinOne

1. The first step, as usual, is to log into MarinOne. 
    
2. Navigate to the Ads tab in the top navigation. Instead of clicking into the tab, click the down arrow icon just to the right of the tab and select Ad Extensions. 
    

   
    

3. Once on the Ad Extensions grid, use the Extension Type column to differentiate between different types of extensions, such as sitelinks, call extensions, and more. 
    

   
    

4. Above the grid, you'll see a toggle for either Ad Extension View or Association View.
    

   

    
   1. Ad Extension View will show you each of your extensions once, with performance data rolled up across all campaigns and groups that your extension is tied to. 
       
   2. Association View will show a single line-item for each extension + campaign/group association. For example, if your "Schedule a demo" sitelink is used in five different campaigns, you'll see five separate line-items for this sitelink, one for each campaign it's associated with. 
       
5. While we don't yet offer full ad extension management in MarinOne, you can bulk upload extensions. Simply click the Upload button and use the drop-down to select the type of extension you'd like to upload. 
    

   
    

6. For Device details about your ad extensions, navigate to the Devices tab and choose Ad Extension from the Level drop-down. The grid here offers the same toggles for Ad Extension View and Association View that you'll find from the Ad Extensions tab. 
    

   
    

In Marin Search

From the Campaigns tab, click into a Google campaign using the hyperlinked campaign name. From there, click on the Ad Extensions sub-tab. 

From the drop-down, select the type of extension you'd like to view. From here, precise creation and management differs from one type of extension to the next, so use the links provided in the Marin Support section of this article to learn more based on the precise type of extension you'd like to add or manage.