Introduction to EFT Logging
As the EFT log file subsystem writes out the date for the log, it compares the current computer date/time to the value for the log rotation (hourly/daily/weekly/monthly/yearly) period specified on the logs tab of the Server. When a write-to-log operation occurs that is calculated to cross a period (that is, the prior write was within a former period, but the current date/time at write is a new period), EFT rotates the log file name and then writes to that new log.
EFT activities can be logged in various places. Refer to Log Format, Type, and Location for details of the various logs.