personnel number cost center

Hi,

I am FICO consultant

My query is

Whenever I want to pass entry in finance e.g. ( travel expenses or salary or other employee related expenses) I have to enter enter personnel number in personnel number field & system should by default take cost center from the master of employee.But it is not happening in our case.

We have maintened employee master & inserted cost center in to it.But what other settings required for this control?.We have not implemented HR.

Regards,

Abhijit