Context and organizations
Campaigns
Creating a campaign is an organization-level action, so it needs Organization write access, not Campaigns.
Campaign settings
Related pages: General campaign settings, Referral settings, Leaderboard, Campaign sign-in options.
Descriptions
Descriptions are the long, formatted texts shown on a campaign, its intro and referral pages, groups, quests, tasks, tournaments, and completion pop-ups.
The area depends on what the description belongs to: Campaigns for campaigns and groups, Quests for quests and tasks, Tournaments for tournaments.