Field help (SHOTRA) 

The short description replaces the standard description when display or print constraints require it.

By default the short title, the long title or the column header of a data are recorded (on creation/update) in the connection language of the user.
You can add your translation in another language using the Translation function:

A user who logs on with this language will view the short description, long description or column header in their connection language if a translation exists. Otherwise, these descriptions will be available in the folder language.

SEEINFOThe connection language must be defined as a default language for thefolder.