We are running moodle 3.0.5+
When we ran the enrolment script at /moodlepath/enrol/database/cli/sync.php, saw what looks like an error.
error: skipping unknown user username '000123456' in course '2017math101'
error: skipping unknown user username '000654321' in course '2017math101'
is it because they have never logged in and if they the next/first time, moodle would automatically enrol them already in their course, correct?