MB_MIGO_BADI issue in pbo header overwrites the excise tab.

method IF_EX_MB_MIGO_BADI~PBO_HEADER.

DATA :gf_class_id TYPE migo_class_id  ,

g_no_input TYPE  xfeld,

g_ext_data TYPE ty_t_extdata..

gf_class_id = 'MIGO_BADI_IMPLEMENTATION_CIN'.

e_cprog = 'SAPLZTESTFORBADI'.

e_dynnr = '1000'.

e_heading = 'Manufacturer'.

  endmethod.

It overwrites the excise tab in header level in migo . can anybody please help regarding this ????? urgent .

Thanks in advance.