Tactic – The name of the tactic at the time of export.

Tactic ID – A unique identifier for this tactic.

Clicks – Count of the number of clicks on this day for the tactic.

Devices impressed – Non-aggregatable.
The number of unique users shown ads for this tactic.

Impressions – Count of the number of impressions on this day for the tactic.

Spend – Sum of the total spend for this tactic.