Extension-valuepart

data: ls_extension type  bapiparex.

loop at extensionin into ls_extension .
        read table extensionout index 1.
        case extensionout-structure.
          when 'BAPI_TE_MEREQITEM' ."CUST_EBAN.
            move ls_extension-valuepart1+0(5) to ls_eban-preq_item.
            move ls_extension-valuepart2+217(1) to ls_eban-zz_cost_section.
            move ls_extension-valuepart2+218(3) to ls_eban-zz_cost_cust.
            move ls_extension-valuepart2+221(19) to ls_eban-zz_cost_model.

            update eban set zz_cost_section = ls_eban-zz_cost_section
                            zz_cost_cust = ls_eban-zz_cost_cust
                            zz_cost_model = ls_eban-zz_cost_model
                            where  banfn = number
                            and bnfpo = ls_eban-preq_item.
        endcase.
endloop.

这里的bapiparex-valuepartX长度是240，从valuepart1往下排'BAPI_TE_MEREQITEM' 字段长度，如果1不够，剩下的就放在2.