GET Parameter ID in Update-Function-Module

[master1980]

I have written a Report in which i I set a parameter ID (= SET PARAMETER-ID Z....).
After this i do an Batch Input (Call Transaction MODE "E") on Transaction CO02 (Change Production Order) and just presses "PRINT" and then "SAVE". Within UPDATE-TASK (CO_VB_ORDER_PRINT).
a Smartform is called. In this Smartform i GET the parameter ID which is unfortunately always empty.

Why is the Parameter ID empty and what would be the best solution?

[suresh_datti]

You can't GET that parameter in a background session. Either store it in a custom table & SESLECT form it or EXPORT to database in the  report and IMPORT form database in the batch job.