Roles

When you're granted access to an ad account you're assigned a role which dictates your access level for that ad account. Which ad accounts you have access to, and which roles you have for them, can be updated at any time.

RoleDescription
Campaign ManagerCreate and manage campaigns, ad groups, ads, and targeting. View audiences, creatives, and assets. Assign this role to users to help you run your campaigns.
Audience ManagerAudience Managers can create, edit, and manage custom audiences. This is an API-specific role and currently can't be assigned to a human user.
ViewerViewers can review all account information and run reports, but they can't create campaigns or make changes to existing ones.
Creative ManagerCreate, edit, and view creatives. Assign this role to developers to help you with creatives.