updating the ztable from import parameters

tables : zbomtable.

types : begin of ty_bom,

reinr type zbomtable-zreinr,

slno type slno,

materialdesc type zbomtable-materialdesc,

plant type zbomtable-plant,

itemno type zbomtable-itemno,

end of ty_bom.

data : it_bom type standard table of ty_bom.

data : wa_bom type ty_bom.

wa_bom-reinr = p_reinr.

wa_bom-slno = p_slno.

wa_bom-materialdesc = p_materialdesc.

wa_bom-plant = p_plant1.

wa_bom-itemno = p_itemno.

append wa_bom to it_bom.

insert bomtable from table it_bom.

append it_bom to bomstructure.

endfunction.

this is logicc i have used and its not working to update the table from external sources

i need correct and if any one know correct one please reply to this postt

regards prabhanjan