In a Moodle 3.2 as admin, enable all filters (Site administration > Plugins > Filters). In the app, go to messaging. Send a text emoji. Check that after a few seconds it becomes a real emoji. Example: :) :( Send a message with words to be censored. Check that after a few seconds they become **. Send an anchor to a youtube video. Check that after a few seconds it becomes a playable video. Example: <a href="LINK">Some text</a> Send a message with multi lang tags. Check that after a few seconds you only see the current language. Example: <span lang="en" class="multilang">English<\/span><span lang="es" class="multilang">Español<\/span> Send a URL to a web page. Check that after a few seconds it becomes a clickable URL. Please notice that the URL cannot contain glossary entries or similar in order to make this work. Example: https://www.google.com Send a URL to an image. Check that after a few seconds it becomes an image. Please notice that the URL cannot contain glossary entries or similar in order to make this work. Example: https://media.timeout.com/images/101851347/image.jpg In Moodle web, create a glossary. Make it a global glossary and enable auto-linking. Create at least 1 entry in the glossary to be auto-linked. In the app, send the word you just created in the glossary. Check that after a few seconds it becomes a clickable link that redirects you to the glossary entry.