Ad testing thresholds

Understand how thresholds affect your ad tests

Ad testing thresholds define the volume of data needed for a valid test result. You can find account and campaign thresholds under Ad testing.

Thresholds for single ad group testing

In a single ad group test, the thresholds apply to each ad.

For daily automated tests, the defined thresholds are used for all test runs. You can override account thresholds at the campaign level.

For manual single ad group tests, you can override the thresholds for every test run.

Thresholds for multi ad group testing

In a multi ad group test, the thresholds apply to each set of ads (defined by patterns or labels).

For daily automated tests, the defined thresholds are used for all test runs. You can override account thresholds at the campaign level.

For manual multi ad group tests, you can override the thresholds for every test run.

How do thresholds affect the test metrics?

A threshold is used only when it's relevant to the metric being calculated:

• Click threshold: only used when calculating the CTR and conversion rate metrics.

• Impression threshold: only used when calculating the CTR, conversions/impressions and conversion value/impression metrics.

• Conversion threshold: used when calculating all metrics, except CTR.

• Confidence and date range thresholds: used when calculating all metrics.

What threshold values should I use?

• The minimum data you should define by testing metric
• How much data should you have before examining an ad test result?