For MVS™ to process broadcast functions properly, you must use the following return code conventions for function routines that handle broadcast calls. When a routine returns control to the SSI:

• Set register 15 to 0.
• Set the SSOBRETN field in the SSOB control block to one of the following:

  Return Code (Decimal)

  Meaning

  SSCMSCMD (0)

  The command does not belong to the function routine.

  SSCMSUBC (4)

  The command belongs to the function routine and was processed.

  SSCMIMSG (8)

  The command belongs to the function routine, but could not be processed. Message IEE707I is issued.