Something to keep in mind before being able to write a foul, is to know that to mark a lack of assistance, the user must be targeted to that class, if it is not impossible to write a fault.
To score a foul we will go to the main screen (to the reservation box), and select the activity in which we want to score the foul.
When we click on the activity that we want, the following window will open.
In this window we can see a list with all the participants, and we can see a dropdown in which there are 4 options, we will select fault to indicate that the participant has not attended.
To see all the lack of attendance of clients who have signed up for an activity we can access to:
Planning → Group classes → Absence.
Here we can see the list of all absences.