How do I create custom ad dimensions?

To create new ad dimensions or remove unwanted dimensions from the default list, you'll need to edit the configuration file.

Here are the steps to follow.

1. Login as the Adminstrator and go to the Setup->System->Preferences->Advanced Setup section.
   
2. Select the Ad Dimensions checkbox, then click on the Download button.
   

3. Edit the configuration file in a text editor.
   Notes:

   • Each dimension is represented by a name/value pair
   • Make sure keys are in the format [WIDTH]x[HEIGHT]

4. Validate your configuration at http://www.jsonlint.com
   

5. Save the configuration into a file and upload it into the system.