Using the same service or accessing the same files from different devices like phones, tablets, and computers. Like having keys that work on all your doors.
Multi-device access lets you start watching a movie on your tablet and continue watching it later on your TV or phone.
Multi-Device Access is a user experience pattern enabled by identity (sign-in), synchronization, and cloud storage—not a single cloud service. All major clouds support it indirectly through services for authentication (SSO/IAM), data storage, and sync-capable backends.