What does it mean when a scheduled transfer is marked as "Completed"?

A Completed status under the Inactive tab applies to the overall schedule, meaning that all planned execution attempts (for a one-time transfer or a recurring schedule) have been completed.

A completed scheduled transfer does not mean that all transfers were successful. An attempted transfer under the schedule may still be unsuccessful due to reasons listed here.

To check if an individual transfer attempt was successful, please refer here.