GLAccount Unable to create Document Number in fb03

BAPI Function : BAPI_ACC_GL_POSTING_POST

Header Data:

e_documentheader-username = RHIRA

e_documentheader-header_txt = Examine

e_documentheader-comp_code = 0001

e_documentheader-doc_date = 04.01.14

e_documentheader-pstng_date = 08.01.14

e_documentheader-fisc_year = 2014

e_documentheader-fis_period = 2014

e_documentheader-doc_type = SU

e_documentheader-ref_doc_no = 30

Item Data:

ti_accountgl-itemno_ac = 1

ti_accountgl-gl_accoun = 0000043000

ti_accountgl-costcente = Plant

APPEND ti_accountgl.

ti_accountgl-itemno_ac = 2

ti_accountgl-gl_accoun = 0000043000

ti_accountgl-costcente = Plant

APPEND ti_accountgl.

Error Message : No data was transferred in parameter ACCOUNTGL