To create a new synchronization:
On the bar at the top of the User Synchronization settings tab, click +Add sync source, and then click Add CSV source. The CSV synchronization properties panel appears on the right side of the screen.
Set up the synchronization: On the CSV synchronization properties panel, set the path to the CSV file in the CSV file field, and configure the synchronization. For information about the synchronization options, see "CSV synchronization setup options" below.
Save the setup.