Follow the steps to make changes to your GO! campaign:
Using the left navigation bar, navigate to Campaigns under the Manage and Measure section.
Click the three dots next to the campaign you want to edit.
From there, you can view the campaign goal and Edit campaign.
Here, you can update:
Campaign name
Campaign goal
Scheduling and budget
Edit Ad set
You can also open the ad to make changes to the ad design by clicking on Edit creative.