Issue with write_form in sapscript

Hi

I have a sapscript, to which I need to pass data from my program.

So I am opening the form using open_form with the form name and using WRITE_FORM to pass data to an element in script. then closing the form using CLOSE_FORM.

It is not passing data to sap script. When I debug and check, the values are not being passed and just displaying the blank script.

I dont have much experience in scripts. Cound anyone let me know how to resolve this?

please find the code below, which I am using.

VIQMEL-MATNR = 'AAA'.

CALL FUNCTION 'OPEN_FORM'

EXPORTING

device = 'PRINTER'

dialog = space

form = 'ZUS_QM_DEVIATION'

language = sy-langu

options = struct.

CALL FUNCTION 'WRITE_FORM'

EXPORTING

element = 'TEXT1'

window = 'MAIN'.

where VIQMEL-MATNR is a place holder in script and that is in window main and text element is 'TEXT1'.

Please help me out.

Thanks,

Pallavi.