How to competently organize a system for logging user actions and possible software errors?

Question

Android

There is a written service application for Android, with the help of which forwarders in special vehicles keep records of which points they passed, how much money they received, etc. Works so far on three tablets in three different machines. Actually the question is how to competently organize a system for logging user actions and possible software errors so that you can view the log later when the shift is over and the tablets return to the office?

Answer 1

I think the most optimal would be solutions like Apache, i.e. simple text file. For a quick view, and for statistics, you can already use "apache_viwer" for example. The main thing here is to choose the format of the log here is already a flight of fancy and actually what you want to get from the log, I think the next. format will work for 80% of cases:
%d date time
%l position (longitude,latitude)
%t - tag(Error, Info, Money Transaction, etc.)
%a - Action (anything... Accepting money, Arriving at the point)
%r - result (5000 rubles, (55.06548; 66.45738))