For this if you are looking to populate the employee number of the user, you may have to modify the SDIM Rule
It would be more of like for every other usecase you will have. Update the SDIM Rule, add new arguments in the Rule example, loginId, EmployeeNumber, EmployeeLocation etc. and then reference it in the SDIM connector as $!plan.arguments.loginId
If you are looking for how to add these fields in the SIDM Rule P.S this post
I am attaching the reference link for more information.