Parameter <str> has invalid scale:  <num> declared, <num>
  passed.

  Explanation:  The parameter was passed to a module language
  procedure with a different scale than it was declared in the
  procedure.  The error message indicates the scale of the
  parameter as declared in the module, and the scale of the
  parameter passed at run-time.

  User Action:  Make the parameter agree in the module and the
  host language.