AI-generated Key Takeaways
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Bid modifiers adjust bids for specific criteria like device type or interaction type without altering campaign targeting.
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Campaign-level bid modifiers can be set for interaction types, currently supporting only call interactions.
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Ad group bid modifiers can be applied to device types and various Hotel Ads criteria.
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You can increase or decrease bids for specific criteria using bid modifiers, such as raising bids for mobile impressions.
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Detailed information on bidding and bid modifier setup can be found in the Bidding guide linked within the content.
Bid modifiers let you adjust bids for a specific criterion without changing the targeting of your campaign or ad group. For example, an ad group bid modifier for mobile devices doesn't exclude impressions for other types of devices, but it does let you raise or lower your bids for mobile impressions.
For more information on how bidding works and how to set bid modifiers, see our Bidding guide.
Campaign bid modifiers
You can specify bid modifiers at the campaign level for the following criteria
type using the CampaignBidModifierService.
InteractionTypeInfo- Define
InteractionTypeInfocriteria using one of the predefinedInteractionTypeenums.CALLis the only supported enum value for campaign bid modifiers.
Ad group bid modifiers
You can specify bid modifiers at the ad group level for the following criteria
types using the AdGroupBidModifierService.
DeviceInfo- Define the
DeviceInfocriteria using one of the predefined Device enums. - Various Hotel Ads criteria
- Check out the Hotel Ads bid modifier guide for more details.