Sequences (and quizzes) can only be played in the app when they are integrated into a course.
In short: only courses can be displayed in the app.
A course is only displayed when
1) it has a title,
2) all units (sequences and quizzes) are available in the selected language and
3) published.
You can check it in the CMS – the language chip of the course has to be green.
In how.fm’s CMS we make sure that all criteria are met for a published course. We want to make sure that only finished and valuable courses get published for your workers.