Facebook Ads split test campaigns allow you to test the same ad(s) against different audiences. It does this by setting up a different ad set for each audience and then running the ads to find a winner.
Once you have found a winner, don’t start a new campaign – just turn the losing ad set off. If you stop the split test campaign and start a new campaign, the Facebook algorithm will be reset and will start again. This will push your conversion cost up.
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