RSR_OLAP_BADI - initialization method

Question

We have created an  implementation using the RSR_OLAP_BADI. In the INITIALIZATION METHOD we are using the code shown below from one of the white papers. The code goes through the characteristics and key figures and finds there position in the table. That position is used in an ASSIGN statement in the COMPUTE METHOD so we can put a value in our virtual key figures. The code for characteristics works fine but the code for key figures does not.
What we found in debug is that field VALUE_RETURNNM in  table I_TH_SFK does not contain a value for any of our key figures.
Does anyone know how or where the table I_T_SFK is filled?
Regards,
Mike...
**CODE:
class cl_exm_im_rsr_olap_badi definition load.
get field postions for characteristics in structure
  loop at i_th_sfc assigning <l_s_sfc>
  where user_exit ne rrke_c_mode-none.
field name in structure is keyreturnnm
name of the global variable
    concatenate 'P_CHA' <l_s_sfc>-chanm
        into l_global_name separated by '_'.
fill the global variable
    unassign <l_global>.
    assign (l_global_name) to <l_global>.
    check <l_global> is assigned.
    <l_global> = cl_exm_im_rsr_olap_badi=>get_field_position_d(
    i_fieldnm = <l_s_sfc>-keyreturnnm
    i_s_data = i_s_data ).
  endloop.
get field positions for key figures in structure
loop at i_th_sfk assigning <l_s_sfk>
       where value_returnnm is not initial.
name of the global variable
    concatenate 'P_KYF' <l_s_sfk>-kyfnm
        into l_global_name
        separated by '_'.
fill the global variable
    unassign <l_global>.
    assign (l_global_name) to <l_global>.
    check <l_global> is assigned.
    <l_global> = cl_exm_im_rsr_olap_badi=>get_field_position_d(
                                       i_fieldnm = <l_s_sfk>-value_returnnm
                                       i_s_data  = i_s_data ).
  endloop.

Answer 1

Fred,
The reference to VALUE_RETURNNM is in the LOOP for Key Figures
in methond INITIALIZE.
get field positions for key figures in structure
loop at i_th_sfk assigning <l_s_sfk>
where value_returnnm is not initial.
name of the global variable
concatenate 'P_KYF' <l_s_sfk>-kyfnm
into l_global_name
separated by '_'.
fill the global variable
unassign <l_global>.
assign (l_global_name) to <l_global>.
check <l_global> is assigned.
<l_global> = cl_exm_im_rsr_olap_badi=>get_field_position_d(
i_fieldnm = <l_s_sfk>-value_returnnmi_s_data = i_s_data ).
endloop.