Any idea how can i disable all tasks and notification created during lead stages?
There are a couple of processes that can create the reminders and notifications. They are: 'Lead qualification 7.8.0', 'Lead distribution 7.8.0', 'Handoff to sales 7.8.0' and 'Awaiting sale'
All these processes are sub-processes of the parent process 'Lead management 7.8.0'
There are 2 options. You can either deactivate the parent process that runs all the sub-processes or edit all sub-processes so that the would not create any activities and reminders.