Fallback

The term "Fallback" means displaying of a technical pixel in a case when the adserver cannot offer anyting to be displayed.

This situation may arise when:

• there is no plan to be displayed (e.g. a plan reaches it´s limits, targeting requirement is not fulfilled)
• a banner requires JavaScript technology and a user has blocked it in a browser

However, you can still use this type of impressions. Create a campaign/ plan of low priority and without any other additional targeting. Use img. banner type or create default banner for the certain position