Creative specifications

One reference article lists the creative requirements for every Reacheffect format: image sizes and weights for banners, push and native, the landing-page rules for popunders and redirects, video length and format for in-stream, and the text limits for push titles and descriptions. Creative rules sit alongside the advertising policies, which define what content is accepted. For the campaign settings of each format (bid, targeting, budget) see the Campaigns section; for what moderation checks before an ad goes live, see Campaign review and moderation.