You can use parameter rdisp/max_alt_modes to restrict the maximum number of external sessions a user is allowed to open in one logon. You should only change this if the circumstances require it (for example, if there are too many roll areas, or the dialog load is too high).
By default, the session number is set to 6. The minimum value is 2 and the maximum is 16.
You can change the parameter dynamically – no restart required!
Note
Older SAP GUI releases can only display maximum 6 session. You need to upgrade the SAP GUI version for the > 6 session.
