call function 'smartform name' - getting import parameter null

call function 'smartform name' - getting import parameter null:

I HAVE DEFINE IMPORT PARAMETER AS UNDER BUT GETTING NULL VALUE WHILE DEBURGING,

WHY IT SHOWING NULL, AND HOW TO GET RELAVENT VALUE FROM TAHT?

• CODE IS***************************

DATA:l_doc_output_info TYPE ssfcrespd, "#EC NEEDED

tab_otf_data TYPE ssfcrescl, "#EC NEEDED

l_job_output_options TYPE ssfcresop, "#EC NEEDED

CALL FUNCTION '/1BCDWB/SF00000110'

EXPORTING ....

IMPORTING

DOCUMENT_OUTPUT_INFO = l_doc_output_info

JOB_OUTPUT_INFO = tab_otf_data

JOB_OUTPUT_OPTIONS = l_job_output_options

TABLE .....

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IF U CAN..

REGARDS,

.