Hi Kiran,
Is it a mass upload program?
Why are you using following? Try removing these lines.
CALL FUNCTION 'CRM_ORDER_INITIALIZE'
EXPORTING
* it_guids_to_init = it_header_guid
iv_initialize_whole_buffer = 'X'
iv_init_frame_log = 'X'.
CALL FUNCTION 'BAL_GLB_MEMORY_REFRESH'
EXPORTING
* I_AUTHORIZATION =
i_refresh_all = 'X'.
CALL FUNCTION 'PRC_INIT'.
CALL FUNCTION 'BREL_INIT_BUFFER'.
CALL FUNCTION 'REL_INIT_BUFFER'.