What controls the work date used on the F0618 record when it is updated by payroll?

It is normally the work date on the timecard that gets passed to the Pay History record in the F0618 when payroll does final update.

We used the Timecard Automation Module to create Retro pay timecards for time worked in the previous year (2022). As part of the Retro Rule, we defined a new work date in 2023 for the current payroll period in 2023 and the associated flag was checked to use the New Work Date on the Retro Rule. That single new date appeared on new timecards and on the R186704 Retro Report that shows the original time entry record information and the new Retro record.