regarding define administrator.

hi experts,

i am new to the SAP, i am doing an internship in a company,

my task is,

my client has got 2 unit in 2 geographical locations say ab1 and ab2, he wants me to define administrators separately for 2 different locations.

for ab1 geographical location:

personnel admin 1----xy1 as one group

time admin 1----xy1 as one group

payroll admin 1--xy1 as one group

and for ab2 geographical location:

personnel admin 2--xy2 as another group

time admin 2--xy2 as another group

payroll admin 2--xy2 as another group.

so this all went fine i did it.

now the question is i dont understand how to define administrator group?

any suggestions on this is appreciated.

thanks

suresh