A population can be populated using membership criteria. When updating the population, all employees that meet the rule are assigned to the population. Part of the membership criteria must be that the legislation of the
employee record (GESEML) must be the same as that of the population. If you have also entered a sub-population, the system also filters the list of contracts by sub-population.
ExamplePopulation legislation = FRA
Membership Rule = [F: ID] SEX = 2 & [F:CTR]POT='PAINTER'
The population contains the contracts of female painters who work within the FRA legislation.

It is advisable to launch a batch update of populations (perhaps every night, or once a week) so that populations are kept up-to-date. To do this, use the
Employee population update function (TRTGENPOP).