When multiple people are using the same register it is best to require employees to enter their pin number after each sale is completed to start a new one. This way you can ensure that each staff operates under their own account and there are no discrepancies in your reports.
This function is available per register (you have to turn it on on each register separately).
To enable, log in to the Indica POS, click on Menu and enter Settings. You will find Log Out After Check Out under Account settings.