Insert a new adset into a running campaign from the All Ads section of the campaign's dashboard. Note that new adsets cannot be added to automatic post promotions campaigns.
To add an adset to a running campaign
- Select the campaign from the Your campaigns drop-down.
- Click the All ads tab.
- Click New AdSet.
- Enter the placement, name and targeting for the new adset, and then click Proceed.
- Enter a budget for the new adset, and then click Apply.