Google Ads API - GAQL - Bid Simulation for Shopping Campaigns

[Mariam Youssef]

Hi,

I'm trying to extract SCALING bid simulation data for shopping campaigns. In the Google Ads UI, I can see the scaling bid simulation and it is on the "Product group" level But when I try to pull the same data with GAQL, it only return UNIFORM simulation modification methods. This is the query that I used:

SELECT 
ad_group_criterion_simulation.ad_group_id, ad_group_criterion_simulation.criterion_id, ad_group_criterion_simulation.start_date, ad_group_criterion_simulation.end_date, ad_group_criterion_simulation.cpc_bid_point_list.points, ad_group_criterion_simulation.modification_method
FROM
ad_group_criterion_simulation
WHERE
ad_group_criterion_simulation.type = CPC_BIDI also tried to query ad_group_simulation, campaign_simulation but they didn't return anything at all. Would really appreciate ​y​our help.

[Google Ads API and AdWords API Forum]

Hi,

Thank you for reaching out to the Google Ads API support team.

In order to assist you further, could you please share the uncropped UI screenshot by highlighting the scaling bid simulation data that you would like to retrieve via the Google Ads API.

You can send the details via Reply privately to the author option, or direct private reply to this email.

Thanks & Regards,

Google Ads API support team.

[Google Ads API and AdWords API Forum]

Hi,

Please be informed that I have removed your response from the forums as it contained the PII information.

Based on the provided screenshots, I understand that you are trying to retrieve the product groups and Bid simulation data. To retrieve the product groups data, I would suggest you use the product_group_view resource in the Google Ads API. You can refer to the below sample query to retrieve the data.

SELECT metrics.clicks, metrics.impressions, metrics.cost_micros, metrics.average_cpc, metrics.benchmark_average_max_cpc, metrics.search_click_share, metrics.search_impression_share FROM product_group_view WHERE campaign.id = campaign_id AND ad_group.id = ad_group_id AND segments.date = '2025-05-18'"

If you want to retrieve the bid simulation data, I suggest you can use the ad_group_criterion_simulation resource.

Thanks & Regards,

Google Ads API support team.

On Tuesday, July 8, 2025 at 6:49:10 PM UTC+5:30 Mariam Youssef wrote:

Hi, 

Thank you for your reply, but I'm still quite confused...

What do you mean by "If you are referring to the word ‘Bid Scaling (%)’, please note that this filter is not related to the ‘ad_group_criterion_simulation.modification_method’ field."
Because this is actually the data I'm interested in - so where can I pull this data from?

I'm also asking because I was pulling the same data "Bid Scaling (%)" for search campaigns with a somewhat similar query - and it gave me the exact same data as in the UI and the modification method is 'SCALING':

SELECT campaign.name, campaign.id,
campaign_simulation.cpc_bid_point_list.points
FROM campaign_simulation
WHERE campaign_simulation.modification_method = 'SCALING'
AND campaign_simulation.type = 'CPC_BID'

Would really appreciate your input here.

Thanks,

Mariam

On Tuesday, July 8, 2025 at 3:50:44 PM UTC+3 Google Ads API and AdWords API Forum wrote:

Hi,

Please be informed that I have removed your response from the forums as it contained the PII information.

Based on the provided screenshots, I cannot see anywhere the word ‘SCALING’ or ‘UNIFORM’ in the UI. If you are referring to the word ‘Bid Scaling (%)’, please note that this filter is not related to the ‘ad_group_criterion_simulation.modification_method’ field. I executed the following GAQL query in order to check if any simulations are present with the ‘ad_group_criterion_simulation.modification_method’ as ‘SCALING’. But, I received an empty response:

SELECT ad_group.id, ad_group_criterion_simulation.criterion_id, ad_group_criterion_simulation.end_date, ad_group_criterion_simulation.start_date, ad_group_criterion_simulation.cpc_bid_point_list.points, ad_group_criterion_simulation.modification_method FROM ad_group_criterion_simulation WHERE ad_group_criterion_simulation.modification_method = 'SCALING’ AND ad_group_criterion_simulation.type = 'CPC_BID'

Therefore, please share the uncropped UI screenshot where you are able to see the values SCALING or UNIFORM in the UI. Meanwhile, you can refer to the SimulationModificationMethod in order to get the complete description of these values.

You can send the requested details via Reply privately to the author option, or direct private reply to this email.

Thanks & Regards,

Google Ads API support team.

On Friday, July 4, 2025 at 2:52:37 PM UTC+5:30 Mariam Youssef wrote:

Hi,

Thank you for your reply.

Here is a screenshot of the data I'm trying to pull with the API

• Campaign and Product Group
  
• Bid Simulation Data

Thanks,

Mariam

  •  Mariam Youssef

  •  Customer Solutions Engineer

  •  mariam...@google.com

  •  Google LLC - Dubai

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