IDM 7.2 job Initial load or to sap master

Hi,

I have a doubt why when we configure the job initial load or write to sap master, not all the data stored on the IS is writed on the backend system?

For instance when we extract dates of an employee of the HCM, why when I check on t-code SU01 not all the fields all fill?

such as department, company, function and others

Is there one script that can do this?