Interfaces and protocols
SFTP transfer
In short and in plain language
With an SFTP transfer, programs exchange whole files. They do not send single requests.
The connection is encrypted. Files usually move at fixed times.
This way is robust and easy to trace. But changes only move as often as the schedule allows.
Definition
With an SFTP transfer the systems do not exchange individual calls but whole files over an encrypted connection — typically CSV or XML exports in fixed time slots. This route is robust and easy to trace, but it only moves changes as often as the schedule allows.