I'm working with two different sessions to insert data.
A VBA archive insert data in the ME01 transaction trough the session 1
and
at the same time another VBA archive inserts data trough the session 2.
But, the performance is not so good. It starts very fast and after some minutes get slow and the saplogon process CPU consumption increases too much.
I changed to the Classic theme and had I selected slow connection in the properties, what make it better, but it´s not the sufficient.
Looking to the records at the database, two registers are saved at the same second, but I´m not sure if they are really parallel.