A fairly new feature in SharePoint Online is the ability to have Site Collection App Catalogs. Neat. Even “Tenant Wide” application customizers work (though they are of course scoped to only the site collection).
Creating a Site Collection App Catalog is simple; just a few lines of PowerShell. After that you get the “Apps for SharePoint” list in your Site Content. But the Tenant App Catalog has a companion list called “Tenant Wide Extensions”. Don’t we get that here too?
Turns out the list is there – it is just hidden. Simply browse to “/Lists/TenantWideExtensions” to find it!
