> For the complete documentation index, see [llms.txt](https://docs.adalysis.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.adalysis.com/tools/ad-testing/faqs/ad-testing-thresholds.md).

# 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**.

<figure><img src="https://3203600314-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FGlXujWJyreRidNjZDCw2%2Fuploads%2Fd9f8Gs8Bl14ieN7JO0Tc%2Fimage.png?alt=media&amp;token=457d397e-e760-40e6-827e-824aae4bf30f" alt=""><figcaption></figcaption></figure>

### **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.&#x20;

### **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.&#x20;

### **How do thresholds affect the test metrics?**

A threshold is used only when it's relevant to the [metric](/tools/ad-testing/faqs/ad-testing-metrics.md) being calculated:

* **Click threshold**: only used when calculating the **CTR** and **conversion rate** metrics.&#x20;
* **Impression threshold**: only used when calculating the **CTR, conversions/impressions** and **conversion value/impression** metrics.&#x20;
* **Conversion threshold**: used when calculating **all metrics, except CTR**.&#x20;
* **Confidence** and **date range thresholds**: used when calculating **all metrics**.&#x20;

### What threshold values should I use?

* [Minimum data by test metric](https://adalysis.com/blog/the-minimum-data-should-you-define-by-testing-metric/)
* [How much data do you need before reviewing a test result?](https://adalysis.com/blog/how-much-data-should-you-have-before-examining-an-ad-test-result/)