The alias must be a 32-bit longword

  Explanation:  Aliases that are passed from a program must be
  32-bit longwords passed by descriptor.

  User Action:  Define the alias to be a 32-bit longword.
  Examples:  For COBOL:  01 AUTHID PIC S9(9) COMP.  For FORTRAN:
  INTEGER*4 AUTHID.