Manual Forecast Adjustments (UAS) FAQ

Document created by catherine.racette on Nov 8, 2017Last modified by catherine.racette on Nov 13, 2017
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To learn more about Manual Forecast Adjustments refer to Manual Forecast Adjustments (UAS) 

What is a manual forecast adjustment?

In some circumstances, you may want to manually adjust your inventory to improve the accuracy of your forecasting. For example:

  • If your account in PubMatic is new and therefore, no past trends exist in the PubMatic system on which to base future predictions.
  • If you expect significant changes in inventory, for example, with the creation or deactivation of ad units or for seasonal events such as Black Friday or Cyber Monday.

To address these needs, PubMatic provides a method for manually adjusting your inventory to more accurately forecast performance.

 

What types of manual forecast adjustments are available?

Currently, there are two types of manual forecast adjustments:

  • Percentage
  • Total Number

 

What is a percentage manual forecast adjustment?

In this type of adjustment, we provide the adjustment value in terms of percentage. The valid range of percentage is -100% to 200%. The actual forecast is adjusted based on the percentage of the original forecast. For example, you can create a percentage adjustment with the adjustment value of 100%. This adjustment will affect the original forecast with the forecast result getting double, i.e., increase by 100% for each day in the designated adjustment period.

Refer to examples

What is a total number manual forecast adjustment?

In this type of adjustment, we provide the adjustment value in terms of actual numbers, with valid values as integers. The total number will first adjust the forecasted impressions for an ad unit and its selected ad sizes to conform to the total number provided and will then apply the adjustment to any applicable parameters in the forecasting reports. 

Refer to examples.

Can a total number manual forecast adjustment be used when applying the forecast history from an existing ad unit?

No. The total number manual forecast adjustments cannot be used when applying the forecast history from an existing ad unit. If an attempt is made to create an adjustment for a newly created ad unit by applying the forecast history of an existing ad unit, the only option is to create the adjustment with a percentage type. 

 

What does it mean to copy an existing ad unit?

When creating a new ad unit, which doesn't have any historical data available, you can copy (apply) the forecasting history from an similar ad unit forecast that already exists.

 

What do the active, failed and archived statuses of the inventory adjustment mean?

Currently Manual Inventory Adjustment supports three statuses:

  • Active
  • Failed
  • Archived

When an adjustment is first created, it is in an Active state by default. If an error occurs while creating the adjustment, the status changes to Failed. If an adjustment is no longer required, we delete it by setting its status to Archived.

Can inventory adjustments be deleted?

Inventory adjustments cannot be deleted, but they can be archived.

 

What are the constraints during creation and update of manual forecast adjustments?

The following constraints should be considered:

  • The name of an adjustment must be unique; no duplicate names are allowed.
  • Adjustments cannot contain parameters that overlap with other adjustments. For more information and examples, refer to  Limitations

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