Data Transformation: Inserting activities into the activity table necessary?


I participated in the Process Mining Expert Program last fall and have a fundamental, technical question about transforming data to create the activity table of a process:

In the process of Data Engineering, according to the training, the Activity Tables are filled with the process activities using the jobs “insert”. Thereby the eventtimes have to be considered because in case of equal eventtimes of two process activities the sorting number must be used to achieve the correct activity order. So it is important to know beforehand how the processes look like and which activity follows when, right? Or is it possible to create a data model without filling Activity Tables, in which case the eventtime data conflicts have to be accepted but the process still becomes visible to a certain degree?

An answer would be greatly appreciated.