Missing notification for MS Planner tasks

[clamanus]

As per MS articles: the notification options from MS Planner should be switched on by default:

It can be reached by Settings>Notifications

The question is why these options are switched off for our organization by default. How those can be enabled for everybody? Any option in O365 Admin Center or any PC command??

Thanks in advance for any help.

[#2]

This is the default setting so if you want to switch it on, you have to do it Plan by Plan or try to automate it

[#3]

@Juan Carlos González Martín OK, so how to automate it? Do you mean by Plan-by-Plan to open each of users account and change any settings? Please describe the both options if you'd be so kind. Thx and BR. Piotr