We are changing the way ad group simulations with SimulationModificationMethod = DEFAULT are calculated in the Google Ads API and the AdWords API.
What’s changing?
For an ad group with keyword bid overrides, we provide estimated traffic for different values of the ad group’s default bid. Currently, all keywords with bid overrides are excluded from this estimate. This results in a lower-than-expected traffic estimate.
Starting the week of January 17, 2022, we will modify our estimation to include both keywords using the default bid and keywords with bid overrides when calculating ad group simulations. We will further assume that only the ad group default bid would change in the simulation, and all keyword bid overrides will remain the same. This may affect the simulations returned by the GetAdGroupSimulation method of the AdGroupSimulationService service in the Google Ads API and the getAdGroupBidLandscape and queryAdGroupBidLandscape methods of the DataService service in the AdWords API.
What should you do?
If you use this feature, we recommend that you ensure that your code continues to work with the modified results returned by these methods.
If you have any questions, please contact us via the Google Ads API forum.
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