This is documentation for Mathematica 7, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.2)


is a global variable which, if set, is applied to the symbol name and tag of messages that are requested but have not yet been defined.
  • $NewMessage is applied to the symbol name, tag and language of a message if an explicit language is specified.
  • Mathematica looks for the value of name::tag or name::tag::lang after $NewMessage has been applied.
  • You can set up $NewMessage to read the text of messages from files when they are first needed.
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