Ad Group Level Target Overrides

AI-generated Key Takeaways

• Bidding strategies are set at the campaign level and override any conflicting ad group-level settings, such as manual bids with automated strategies.

• Target ROAS and Target CPA set at the campaign level can be overridden at the ad group level by specifying target_roas and target_cpa_micros for the ad group, respectively.

• Overriding Target ROAS or Target CPA associated with a portfolio strategy at the ad group level will result in an error.

• To remove an override for Target ROAS or Target CPA at the ad group level, send a mutate request with an empty value for the respective field (target_roas or target_cpa_micros) while including the field path in the field mask.

• You can retrieve the effective Target ROAS and Target CPA values for an ad group, along with their sources, using the effective_target_roas, effective_target_roas_source, effective_target_cpa_micros, and effective_target_cpa_source fields.

The following overrides are available.

Override bidding strategies

A bid strategy can only be set at the campaign level. So for example, if a campaign has already been assigned a TARGET_ROAS strategy, setting TARGET_CPA fields in one of its ad groups will have no effect.

Similarly, setting bids manually will have no effect if you are using a campaign-level bid strategy that doesn't support them. For example, if your campaign uses TARGET_ROAS as a standard bidding strategy, and you set max CPC values for individual keywords in that campaign, the keyword-level bids will be ignored without errors. If you were to switch to manual bidding, the keyword-level bids would then take effect. Read more in the Help Center.

Override Target ROAS at the ad group level

The target_roas field of a TargetRoas bidding scheme, or a MaximizeConversionValue with its target_roas field set, can be overridden at the ad group level by setting the ad group's target_roas field. The other fields of the bidding scheme cannot be overridden.

To remove an override, unset target_roas of the ad group by sending a mutate request with an empty field value but still supplying the path in a field mask. Attempting to override the target_roas field of a TargetRoas scheme associated to a portfolio strategy will result in an error.

You can retrieve the effective target_roas value of an ad group with the effective_target_roas field and its source with the effective_target_roas_source field.

Override Target CPA at the ad group level

The target_cpa_micros field of a TargetCpa bidding scheme, or a MaximizeConversions with its target_cpa_micros field set, can be overridden at the ad group level by setting the ad group's target_cpa_micros field. The other fields of the bidding scheme cannot be overridden.

To remove an override, unset target_cpa_micros of the ad group by sending a mutate request with an empty field value but still supplying the path in a field mask.

You can retrieve the effective value of target_cpa_micros for an ad group from the effective_target_cpa_micros field and its source from the effective_target_cpa_source field.