Mapping of organizational structure HCM

Hi gurus,

My requirement, is to update day by day, a organizational strucure within CRM from R/3 with all the infotypes, via JOB or any option.

I Mean, is to copy all the structure

from R/3:

O organizational structure

+---> S Position

+------> US user

to CRM:

O organizational structure

+---> S Position

+------> BP Business Partner

This information is located in the below tables

To do this I've two options:

a) Make a z custom program in which i could

b) Maintain organizational structure via middleware/bdoc/ale, I've worked with this but I don't know exactly if I can copy all the data using some of this options.

Any help would be quite useful.

Thanks in advance.

Regards