Google Ad Manager predicts when your line items will underdeliver and alerts you in several places, giving you the opportunity to stop underdelivery before it happens. Underdelivery is a lost opportunity for your line item to meet its goals. Insufficient inventory, or not enough available impressions, is the primary reason for underdelivery of a line item. With forecasting of underdelivery, you’ll know in advance which line items may not have enough inventory, and have the time to take action and give your line items a better chance to deliver.
Line items that can receive underdelivery warnings
To be eligible to receive an underdelivery warning, a line item must:
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Have not started delivering yet.
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Start in the next 30 days.
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End within the next year from today.
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Have an absolute goal (for example, number of impressions for a standard line item) instead of a percentage-based goal.
Where to see underdelivery warnings
Ad Manager offers underdelivery warnings in a variety of ways:
| Warning | Description |
|---|---|
| Expected to underdeliver status |
In Ad Manager, click Delivery
|
| Filter for orders or line items that are Expected to underdeliver |
These are the options for filtering:
Filtering gives you a tightly focused overview of the orders or line items that may need attention because of insufficient inventory, and simplifies the process for making updates as needed. |
What should I do when I see an underdelivery warning?
When you see the underdelivery warning for a line item, we recommend you run a forecast before taking action.
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If the forecast also predicts underdelivery, try to determine what will improve your chances of delivery. Experiment with changes to settings or targeting in your forecast. On a line item, you can run a forecast to see the effect before applying the changes. For example, see if more inventory will be available if you target a different set of ad units, or if you choose a different date range. Then apply the changes to your line item. Here are some other tips for resolving underdelivery.
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If the forecast actually predicts that the line item will deliver, the forecast is likely the more reliable measure. If these discrepancies occur often, please report the issue to your Ad Manager support representative.
If the line item is forecasted to almost have enough to deliver but just falls short, it's more likely to not be flagged (that is, to return a false negative) than to be flagged for underdelivery.
How often are underdelivery warnings updated?
Underdelivery warnings are updated once a day.
