Tactic Forecasting & Bid Guidance

As you set up a tactic, the DSP predicts the number of impressions that it can win at the default bid to give you a sense of available inventory and pricing.

At the top of the tactic editor, you'll see the number of days left in the campaign, the current spend, the projected spend (up to the all-time budget), the impressions won to date, and the projected available impressions. If there are errors in these calculations, helpful messages appear below the forecast to help you troubleshoot any issues.

As you make changes to your tactic, the forecast automatically refreshes to show you how your changes impact the predicted availability.


Projected Spend and Available Impressions don't update automatically. Click the refresh button to manually update the forecast and see the new projected spend and impression values.

Tactic Forecasting Data

Tactic forecasting incorporates granular information, such as specific flight dates and selected exchanges, to produce more detailed predictions than DSP inventory forecasts, which offer broader estimates to help guide tactic planning.

The DSP considers the following factors when calculating projected spend and impressions for tactic forecasts: 

Note: Tactic forecasting doesn't consider the impact of bid multipliers, cross-device targeting, day parting, or page position.

Bid Guidance

The bid guidance graph shows the relationship between the net bid price and the impressions that can be won.

Click Bid Guidance in the upper-right corner of the tactic editor to view the big guidance graph. Hover over different points to see how many impressions might be available for a given maximum bid price.