When setting up multiple campaigns, you may find it easier and faster to simply duplicate one of your campaigns rather than create a new one from scratch. This is helpful, for example, when you only want to change just one element of an existing campaign such as the targeting, budget or timeframe.
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For instance, if you have a campaign running only on desktop and you want to also test it on mobile, you can simply duplicate your original campaign, change the platform targeting of the duplicated campaign to mobile and you’re all set.

You can edit your campaign at any time by returning to the Edit Campaign page.