To create a holdout check, go to the Experiments device and click on Get Began underneath the Holdout Test part.

Now choose what you need to check. For a holdout check, you possibly can select from these choices:

For this instance, choose Marketing campaign Group so you possibly can check how your new campaigns might positively affect your focused viewers conversion charges.

Title your marketing campaign group clearly and choose the campaigns to embody in your group. Then decide your begin and finish dates and title your holdout check.

Scroll down and choose the varied conversion occasions you need your holdout check to measure. You’ll be able to decide up to 10 conversion occasions for which Facebook will report conversion lifts on the Outcomes tab.