In the ‘Geo’ tab of the ‘Edit Targeting’ section on the Line Item, you can select Countries, Regions, DMAs, and Cities for where your campaign will be targeted. Below are the key points to setting up Geo targeting:

• Country Selection: At least one Country must be selected to begin targeting. Once a country is chosen, you can further refine your targeting by adding secondary geographic layers such as Regions, Designated Marketing Areas (DMAs), or Cities. Note that Regions refer to states, provinces, or municipalities.
• Targeting Funnel: Geo targeting works like a funnel, where the most granular targeting condition must ALWAYS be met for an impression to be served. For instance, if you select a zip code in Miami, along with the Miami DMA and United States as the country, your campaign will only serve in that specific zip code since it’s the most granular level of targeting.
• Layer Consistency: Each layer of Geo targeting must coincide with the previous layers. If there are conflicts, such as selecting the United States, a New York City DMA, and a Florida zip code, the campaign will not be able to serve because the DMA and zip code are geographically inconsistent.
• Available DMAs: The following countries support DMAs for targeting.
  • Aland Islands
  • Australia
  • Canada
  • China (Diji Shi cities)
  • Finland
  • France (Departments)
  • Germany (German Nielsen Metro Codes)
  • Korea, Republic of (Si/Gun/Gu)
  • New Zealand
  • Norway
  • Russian Federation (Federal Districts)
  • United Kingdom (ITV Regions)
  • United States (DMAs)