--- title: Create a multiple ad group Parallel test for CPP A/B Testing description: Set up a test to compare up to four ad groups for one product page. --- [Skip to content](https://helpcenter.mobileaction.co/en/create-a-multiple-ad-group-parallel-test-for-cpp-a-b-testing#main-content) [![MobileAction Logo](https://helpcenter.mobileaction.co/hs-fs/hubfs/logo_black_medium-1.png?width=145&height=48&name=logo_black_medium-1.png)](https://www.mobileaction.co/) - [Website](https://www.mobileaction.co/) - [Help Center](https://helpcenter.mobileaction.co/en) Open main navigation Close main navigation - [Website](https://www.mobileaction.co/) - [Help Center](https://helpcenter.mobileaction.co/en) Advice and answers from the MobileAction Team - There are no suggestions because the search field is empty. 1. [Help Center](https://helpcenter.mobileaction.co/en?hsLang=en) 2. [MobileAction CMP](https://helpcenter.mobileaction.co/en/mobileaction-cmp?hsLang=en) 3. [CPP A/B Testing](https://helpcenter.mobileaction.co/en/mobileaction-cmp?hsLang=en#cpp-a-b-testing) # Create a multiple ad group Parallel test for CPP A/B Testing Use this setup to find the best-performing ad group for a single custom product page. This article explains how to create a test where multiple ad groups run at the same time with the same custom product page. If you want to compare multiple product pages instead and include the default product page as well, learn how to [create a single ad group Parallel test](https://helpcenter.mobileaction.co/en/create-a-single-ad-group-parallel-test-for-cpp-a-b-testing?hsLang=en), [Ad Group Switch test](https://helpcenter.mobileaction.co/en/create-an-ad-group-switch-test-for-cpp-a-b-testing?hsLang=en), or [Ad Switch test](https://helpcenter.mobileaction.co/en/create-an-ad-switch-test-for-cpp-a-b-testing?hsLang=en). ### Before you start Keep these points in mind: - You can select **up to four ad groups**. - You can select **one custom** product page (the system allows you to select a single custom product page, and selecting the default product page is not available). - To ensure an unbiased result, strategies such as **Automations** and AI **Smart Bidding** will **not** be active for the selected ad groups. - All selected ad groups will be active at the same time. - You choose a **desired precision and confidence level**, and the system calculates the test duration based on these values and recent historical campaign data. ### Instructions 1. Open CPP A/B Testing from the side menu. ![1.](https://helpcenter.mobileaction.co/hs-fs/hubfs/Help%20Center%20Images/CPP%20A-B%20Testing/multiple%20ad%20group%20Parallel%20test/1..png?width=670&height=359&name=1..png) 2. Create a new test. ![2.](https://helpcenter.mobileaction.co/hs-fs/hubfs/Help%20Center%20Images/CPP%20A-B%20Testing/multiple%20ad%20group%20Parallel%20test/2..png?width=670&height=359&name=2..png) 3. Use a clear name that shows what you are comparing. Example: **\[Custom product page name\] – Ad group comparison – \[Date\]** **![3.](https://helpcenter.mobileaction.co/hs-fs/hubfs/Help%20Center%20Images/CPP%20A-B%20Testing/multiple%20ad%20group%20Parallel%20test/3..png?width=670&height=445&name=3..png)** 4. Choose the ad groups you want to compare for one custom product page. ![4.](https://helpcenter.mobileaction.co/hs-fs/hubfs/Help%20Center%20Images/CPP%20A-B%20Testing/multiple%20ad%20group%20Parallel%20test/4..png?width=670&height=379&name=4..png) **Note:** Automations and AI Smart Bidding will be inactive during the test to ensure unbiased results. When the test starts, the original ad groups are paused, and the system creates exact copies to run as test variants. #This duplication logic is similar to the [Duplicate Ad Groups](https://ads.apple.com/app-store/help/ad-groups/0058-duplicate-ad-groups) workflow. 5. **Select one custom product page.** Only one product page can be selected in this setup. It remains the same while the ad group performance is compared. ![5.](https://helpcenter.mobileaction.co/hs-fs/hubfs/Help%20Center%20Images/CPP%20A-B%20Testing/multiple%20ad%20group%20Parallel%20test/5..png?width=670&height=442&name=5..png) 6. **Choose the** [**desired precision**](https://helpcenter.mobileaction.co/en/statistical-background-of-cpp-a-b-testing?hsLang=en) **and the confidence level.** This selection defines how precise the results should be. The system automatically calculates the test duration based on your selection. ![6.](https://helpcenter.mobileaction.co/hs-fs/hubfs/Help%20Center%20Images/CPP%20A-B%20Testing/multiple%20ad%20group%20Parallel%20test/6..png?width=670&height=422&name=6..png) 7. Confirm the summary and hit **Start CPP A/B Testing**. The system automatically handles setup, including pausing original ad groups and creating test variants. ![7.](https://helpcenter.mobileaction.co/hs-fs/hubfs/Help%20Center%20Images/CPP%20A-B%20Testing/multiple%20ad%20group%20Parallel%20test/7..png?width=670&height=402&name=7..png) When the test ends (or is stopped early), the system automatically pauses the test variants and reactivates your original ad groups, including their previous automation strategies. ### After you finish Once your test is running, you can track its progress immediately. 1. Navigate back to the CPP A/B Testing dashboard. 2. Locate your test in the list to see its status (Running, Completed, Stopped) and its start/end dates. 3. Click on the arrow in each line to monitor performance metrics such as Impressions, TTR, and CR. You can switch between table and chart view and review the test log for event history. To learn more about monitoring, check out[How do you monitor and interpret tests in CPP A/B Testing.](https://helpcenter.mobileaction.co/en/how-to-monitor-cpp-a-b-tests-in-the-dashboard?hsLang=en) ### Related links - [Test creation in CPP A/B Testing](https://helpcenter.mobileaction.co/en/test-creation-in-cpp-a-b-testing?hsLang=en) - [What are the requirements and limits for CPP A/B Testing](https://helpcenter.mobileaction.co/en/what-are-the-requirements-and-limits-for-cpp-a-b-testing?hsLang=en) - [How is test duration calculated in CPP A/B Testing](https://helpcenter.mobileaction.co/en/how-is-test-duration-calculated-in-cpp-a-b-testing?hsLang=en) - [How do you monitor and interpret tests in CPP A/B Testing](https://helpcenter.mobileaction.co/en/how-to-monitor-cpp-a-b-tests-in-the-dashboard?hsLang=en) --- ### Need more help? 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