channel support

The channel support tag covers Microsoft Teams requirements for apps that work in channels, with a focus on the July 2026 Manifest 1.25 submission rule. The available discussion clarifies that this requirement applies to new channel-enabled apps submitted to the Teams Store, rather than automatically affecting every Teams app already deployed within an organization. It also distinguishes Marketplace submissions from tenant-only custom apps and personal-scope message extensions, which follow different distribution paths. Administrators reviewing channel support guidance can use these distinctions to classify their apps, determine whether repackaging is necessary, and plan around Microsoft’s separate rules for Store and single-tenant deployments.