verions: Moodle 3.9.2+
We have about 390 students a course that was not monitored very well, many have fallen behind.
I tried to message all students (using the standard student messaging option) but Moodle came up with a warning "do you want to message all these users" and the only option was "No", the Yes option was greyed out.
How can I
a) sort the students by last time on server (over 30 days) then message them as a group - not just one by one.
b) effectively message all users without being blocked my Moodle.
Thank you in advance!