Getting Service tax amount fro fiap

hi experts,

we have requirement for getting service tax amount for fiap for this we have identified to fetch the data for servicetax gl to our fiap.first i created a multiprovider on top of fiap and figl but the values r not coming in that flow then i enhance tthe dmptr of service tax gl still the amountin local currency is getting so can u please suggest how to get the servicetax amount.i am posting the code for this that i wrote in cmod.

SELECT SINGLE HKONT

DMBTR

FROM bseg INTO wa_bseg

WHERE BUKRS = l_s_fiap4-BUKRS

AND BELNR = l_s_fiap4-BELNR

AND GJAHR = l_s_fiap4-GJAHR

AND BUZEI = l_s_fiap4-BUZEI

AND HKONT = '**********04'.

if sy-subrc = 0.

* AND WA_BSEG-HKONT = '********"

BREAK-POINT.

l_s_fiap4-zzdmbtr = wa_bseg-DMBTR.

MODIFY c_t_data FROM l_s_fiap4 INDEX l_tabix.

CLEAR l_s_fiap4.

CLEAR wa_bseg.

* CLEAR wa_ty_bkpf.

Endif.

endloop.