How to set a popup message if user try to change language through User Menu > Preferences > Display

[Balasai peela]

Hi All,

We have installed  4 new languages in our ServiceNow instance and we have a requirement that if any user try to change language through User Menu > Preferences > Display > language and changed to any of these 4 languages need to display a message to the user. 

We have done the same for portal and user from and pop up message is working but if the user try to change through user menu > preferences need to set the message. Moreover, in which table User Menu > Preferences > Display> language are stored ?

For instance, new languages are finnish, russian etc..,

Does any one know how to achieve this, any help would be greatly appreaciated.

Thanks,

Bala

[Slava Savitsky]

I would simply deactivate the choices, so that the user cannot select them at all. Is there any reason why you cannot deactivate the choices? Are you using those choices elsewhere?