Number of Sessions Actived

Hi All,

I need to call a function from a user exit to make a process in parallel. I have used CALL FUNCTION .... IN NEW TASK to create the parallel process in a new session, but when the number of session is 8 and the function is executed, the system show me an alert message about the maximum number of session reached.

it is not possible to use LEAVE TRANSACTION TO because the user exit process have to finish, too.

How can obtain the number of session active actually (any tables) ?

is there a way to executed a call function in parallel process without create an new session?

thanks