Looker Studio Google Ads Data Does Not Match Google Ads: What to Check
When Looker Studio Google Ads data does not match the Google Ads interface, the difference usually comes from the connector, the date range, the account selection, conversion attribution or how the metrics are defined. Looker Studio pulls Google Ads data through a connector that has its own aggregation and freshness rules, so the two systems can show different numbers without either being wrong.
Table of Contents
- 01.Where Google Ads data differences come from
- 02.What to check first
- 03.Account selection and multi-account setups
- 04.Conversions and attribution differences
- 05.Metric definitions
- 06.Data freshness and the connector
- 07.How to test the fix
- 08.How to validate the final result
Where Google Ads data differences come from
Looker Studio connects to Google Ads through the Google Ads connector, which pulls from the Google Ads API. The interface and the API can present the same metrics with different aggregation, attribution and freshness. A mismatch is often a difference in how the data is sliced, not a data error.
| Cause | What happens | How to check |
|---|---|---|
| Account selection | Wrong or partial account linked | Confirm which accounts the connector includes |
| Date range | Different inclusive boundaries | Match the range exactly with the interface |
| Conversion attribution | Different attribution window | Compare conversion settings and attribution |
| Metric definition | Conversions vs conversion value vs clicks | Confirm the exact metric used |
| Data freshness | Connector lags the interface | Check the data freshness setting |
| Campaign filters | Report filters exclude campaigns | Remove filters and compare totals |
What to check first
- Confirm the connector is linked to the correct Google Ads account or accounts.
- Match the Looker Studio date range exactly with the Google Ads interface range.
- Confirm the metric in Looker Studio matches the metric you compare in the interface.
- Remove report filters and compare the unfiltered total.
- Check the data freshness setting on the Google Ads data source.
Account selection and multi-account setups
The Google Ads connector can link to a single account or a manager account. If the connector is linked to a manager account, it can include multiple child accounts, which changes the totals compared to viewing one account in the interface. Confirm which accounts the connector includes and compare the same scope in the Google Ads interface. A total that looks wrong can simply be a different account scope.
Conversions and attribution differences
Conversion numbers are a frequent source of mismatch. Google Ads conversions depend on the conversion action, the attribution model and the conversion window. The connector can present conversions with a different attribution view than the interface default. Conversion value adds another layer, because it depends on the value assigned to each conversion action. Confirm the conversion settings and attribution match before comparing totals. Conversion definitions should be validated first, as covered in the guide on Looker Studio conversion data wrong.
Metric definitions
Clicks, impressions, conversions and conversion value are different metrics. A report that compares Looker Studio conversions with interface clicks is comparing unrelated numbers. Confirm the exact metric name in Looker Studio matches the metric in the Google Ads interface. Some metrics also have variants, such as conversions versus all conversions, which measure different things.
Data freshness and the connector
The Google Ads connector caches data based on the freshness setting. The interface can show more recent data than the connector. For the current day, the interface is rarely final, because clicks and conversions update throughout the day. Compare completed past days rather than today, and check the freshness setting. Do not assume a specific update cadence, because it varies by connector and setting.
How to test the fix
- 1.Confirm the connector account scope matches the interface account scope.
- 2.Compare a completed past day with the same metric in both systems.
- 3.Remove report filters and compare unfiltered totals.
- 4.Confirm the conversion attribution and window match before comparing conversions.
How to validate the final result
The comparison is valid when both systems use the same account scope, date range, metric definition and attribution settings. At that point, small differences are usually freshness or processing, while large differences point to a scope or metric mismatch. The goal is to explain the difference, not to force identical numbers.
Frequently Asked Questions
Why does my Looker Studio Google Ads cost not match the interface?
Check the account scope, the date range and the data freshness setting. A connector linked to a manager account includes multiple child accounts, which changes the total. Compare a completed past day with the same account scope in the interface.
Why are my Google Ads conversions different in Looker Studio?
Conversions depend on the conversion action, attribution model and conversion window. The connector can present conversions with a different attribution view than the interface default. Confirm the conversion settings and attribution match before comparing totals.
Need help applying this to your business?
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