- To open Facebook ads manager click on the the carrot on the far right of the toolbar and then select "Manage Ads."
- On the main FB Business Page, click on Account Settings.
- Then navigate to "Account Roles" in the left hand side bar.
- There you can see and modify which people have specific permissions. For the person you'd like to add to the account, select the appropriate level of permissions.
- After all relevant permissions have been assigned, be sure to click save.
You're all set to start testing!