The purpose of this step is to determine:

• Whether any errors will occur while the new function is being applied (except for errors that occur as a direct result of an update, such as a target library running out of space). This includes missing DDDEF entries.
• Whether any requisite SYSMODs are missing.
• The target libraries that will be updated.
• The SYSMODs, if any, that will be regressed.

Use the SMP/E dialogs or the following sample job to do an APPLY CHECK for the function and related SYSMODs:

//APPLY    JOB 'accounting info',MSGLEVEL=(1,1)
//APPLYCHK EXEC SMPPROC
//SMPCNTL  DD *
SET      BDY(ZOSTGT1)       /* Set to target zone.      */.
APPLY    FORFMID(HXX1200)   /* Apply for this FMID      */
         FUNCTIONS          /*  the function itself     */
         PTFS               /*  and all its PTFs.       */
         GROUPEXTEND        /* Also all requisite PTFS. */
         CHECK              /* But do not update libs.  */
         BYPASS(HOLDSYSTEM  /* Bypass options           */
                HOLDCLASS(UCLREL,ERREL)
               )
         .
/*