Under Check-in / Check-out, select the Enable check out.
Click Save.
Go to Event > Settings.
Click on Credits (bottom left).
Select Enable Credits.
Fill in the Full credits for attending event.
Fill in the Minimum percentage of total attendance time required to receive credits for attendance.
Tick the Calculate Attendance based on Rooms check-in.
Click Save.
Go to Event > Setup > Sessions.
Next to the session click the icon .
Select Edit Session.
Under More settings +.
Select Enable for attendance Credits.
Press Save.
E.g. attendance at the evening party is not taken into consideration, so in this case you do not check Enable for attendance Credits for that specific session.