Update termination error while calling FM in Update task

Hi Friends,

I am calliing my Z Function Module in update task from my report, my function module contain reuse alv list display fm which should create a Spool in the spool list.

When ever i am directly executing my Z function module i am getting spool in SP01, but when ever i am calling the Z Function Module in update task from my report i am getting a message as "Express document "Update was terminated" received from author.

I want to call the Function module in update task and it should generate spools .

Syntax:

CALL FUNCTION 'ZLOK_TEST' IN UPDATE TASK.

Commit work.

Thanks Regards,

Sandipan jena