Internal table declaration in FORM INTERFACE

Hi experts,

i have developed a smartform, i have coded internal table declarations at program

level.

i got the fileds from LIPS and QALS into <b>IT_FINAL</b> at program level,

Now i want to populate only <b>IT_final</b> in the Form Interface,

but i m facing type conflict there, can any one tell me how to pass this <b>IT_final</b>

in the <b>FORM INTERFACE</b>

Regards,

Shashank