performance max sum(campaign impressions) doesn't match asset group & product impressions

[neo]

Hello,

I'm collecting PERFORMANCE_MAX campaign hourly impressions & clicks via googleAds:searchStream API.

and also, collecting daily asset_group & shopping_performance_view in the SAME campaign via googleAds:searchStream API.

1. 'campaign' hourly impressions 
2. 'asset_group' daily impressions 
3. 'shopping_performance_view' daily impressions 

BUT, sum counts doesn't match within the same campaign.

 sum(campaign metrics.impressions) != sum(asset_group metrics.impressions) + sum(shopping_performance_view metrics.impressions) 

 When I see the response data, It looks like shopping_performance_view's impression count  doesn't include in the campaign searchStream response.

because I found sum(campaign metrics.impressions) = sum(asset_group metrics.impressions).

Any advice for collecting performance_max campaign performance?

Thanks

[Google Ads API Forum Advisor]

Hi,

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

Based on the provided information, I understand that you have encountered data discrepancy with the impressions metrics with campaign, asset_group and shopping_performance_view resource. You can refer to the associated resources for reporting on Performance Max campaigns.

In order for us to further investigate the discrepancy you are encountering and provide appropriate recommendations to you, could you please provide us with the uncropped UI screenshot of the report that you are trying to replicate via the Google Ads API?

When comparing the value of the Google Ads UI and Google Ads API.

• The segments and fields of the API and UI should be the same.

• The date range should also be the same.

• Comparing the API and UI at the same level as possible.

With that, please provide us with the complete API logs (request and response with request-id and request header) generated at your end to better assist you.

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

This message is in relation to case "ref:!00D1U01174p.!5004Q02tIrPO:ref" (ADR-00233464)

Thanks,
 

Google Ads API Team