Test Web Services As admin, enable "Multi-language Content" filter in the site for content and headings (Site administration > Plugins > Filters > Manage filters) In a course, create an assignment activity, a database, and a lesson. In the name of the activity put this multilang text: <span lang="en" class="multilang">English</span><span lang="es" class="multilang">Español</span> Enrol one user as student or teacher in the course you just used Edit the user profile and force the language to English Enable "Mobile services": Site administration ► Mobile app ► Mobile settings Create a Token in the mobile app service for the user you just enrolled Click on Site administration ► Plugins ► Web services ► Manage tokens Open the console an execute this new curl request, replacing wstoken with the token you just created and the site url with yours. Replace also the COURSEID word with the course id where you created the activities curl 'http://localhost/m/stable_master/webservice/rest/server.php?moodlewsrestformat=json' --data 'courseids%5B0%5D=COURSEID&wsfunction=mod_data_get_databases_by_courses&wstoken=3af67232a7596ceb658df4db329e5ad6&moodlewssettingfilter=true' | python -m "json.tool" Confirm that: Among the returned fields, you see a "name" field set to exactly "English" Now, execute the following curl request doing the same replacements than before: curl 'http://localhost/m/stable_master/webservice/rest/server.php?moodlewsrestformat=json' --data 'courseids%5B0%5D=COURSEID&wsfunction=mod_lesson_get_lessons_by_courses&wstoken=3af67232a7596ceb658df4db329e5ad6&moodlewssettingfilter=true' | python -m "json.tool" Confirm that: Among the returned fields, you see a "name" field set to exactly "English" Now, execute the following curl request doing the same replacements than before: curl 'http://localhost/m/stable_master/webservice/rest/server.php?moodlewsrestformat=json' --data 'courseids%5B0%5D=COURSEID&wsfunction=mod_assign_get_assignments&wstoken=3af67232a7596ceb658df4db329e5ad6&moodlewssettingfilter=true' | python -m "json.tool" Confirm that: Among the returned fields, you see a "name" field set to exactly "English" Test web change In the same course used for the previous test, create a "Survey" activity setting the multi-language text to the same one used in the previous test. Now, access to the "Choice" Go to the choice report via the "View X responses" link and confirm that The choice name is just "English" In the same course used for the previous test, create a "Book" resource setting the multi-language text to the same one used in the previous test. Confirm that: In the "Add new chapter" script you are redirected after creating the "Book", the name of the activity is just "English" (the name at the top of the page bjust ellow the breadcrumb) In the same course used for the previous test, create a "Survey" activity setting the multi-language text to the same one used in the previous test. Confirm that: When accesing the new Survey, the name of the activity is just "English" (the name at the top of the page just bellow the breadcrumb)