Enabled languages
Which locales appear in the language switcher. At least one must stay on; default must remain checked.
Enabled languages
Only checked languages appear in the public language switcher.
Where to find it
Admin → Settings → Settings (first tab) → Languages → Enabled languages
Setting key: languages_enabled (JSON list of locale codes)
How it works
Visitors pick from this list when a language menu is shown. Detection also resolves only to enabled locales (else default).
If the list is empty/missing in storage, the product may treat all built-in locales as enabled — keep an intentional checklist.
Common problems
Default language cannot be unchecked
Change Default language first.
Switcher shows languages you do not want
Uncheck them here. Hiding the header/footer menu alone does not remove them as detection targets.