Here is what I would do.
Pull down the latest respin and slip LIC.
Then install the latest groups.
That should prevent the normal pitfalls of jumping TRs when applying the latest PTFs.
from: Stephen Landess <steve_landess@xxxxxxxxxxx>
subject: PTF's
All -
After working since 1989 as a consultant I recently changed jobs, and one of my new duties is system administration.
My new employer operates very lean but not chintzy - we have current software support contracts for everything, including any non-IBM software.   I'll eventually replace my boss who is the current wears-all-the-hats person (IBM i admin, JDE admin and all necessary program development / bug fixes).
Hopefully I'll be able to persuade them to buy me a copy of RDI !
It has been a long time since I worked with PTF's.
One concern is that no PTF's have been applied on this system since they went thru a system upgrade in 2019, so I need to determine what is needed and get the PTF's and TR's installed.
 Data area . . . . . . . :   QSS1MRI
   Library . . . . . . . :     QUSRSYS
 Type  . . . . . . . . . :   *CHAR
 Length  . . . . . . . . :   750
 Text  . . . . . . . . . :
            Value
 Offset      *...+....1....+....2....+....3
     0      'V7R3M000                 2924
WRKPTFGRP shows:
                              Work with PTF Groups
                                                             System:   XXX
 Type options, press Enter.
   1=Order   4=Delete   5=Display   6=Print   8=Display special handling PTFs
   9=Display related PTF groups     10=Display PTF apply information
 Opt  PTF Group             Level  Status
      SF99876                   8  Installed
      SF99876                   6  Installed
      SF99875                  17  Installed
      SF99875                  14  Installed
      SF99867                   2  Installed
      SF99731                  10  Installed
      SF99730               19116  Installed
      SF99730               18025  Installed
      SF99729                  84  Installed
      SF99729                  56  Installed
      SF99728                  41  Installed
      SF99728                  27  Installed
      SF99727                   6  Installed
     SF99727                   4  Installed
     SF99725                  12  Installed
     SF99725                   8  Installed
     SF99724                  27  Installed
     SF99724                  19  Installed
     SF99723                   4  Installed
     SF99722                  18  Installed
     SF99722                  14  Installed
     SF99703                  15  Installed
     SF99703                   9  Installed
     SF99581                   5  Installed
     SF99433                   2  Related group
     SF99333                   4  Related group
     SF99252                   8  Installed
     SF99225                   6  Installed
 PTF group  . . . . . . . . :   SF99730
 Level  . . . . . . . . . . :   19116
 Status . . . . . . . . . . :   Installed
 Target release . . . . . . :   V7R3M0
 Text  . . . . . . :   CUMULATIVE PTF PACKAGE C9116730
PTF group  . . . . . . . . :   SF99730
Level  . . . . . . . . . . :   18025
Status . . . . . . . . . . :   Installed
Target release . . . . . . :   V7R3M0
Text  . . . . . . :   CUMULATIVE PTF PACKAGE C8025730
Thanks for any guidance, I'm currently looking at the IBM i PTF guide at 
https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ibm.com_docs_en_i_7.3-3Ftopic-3Dsystem-2Ddisplaying-2Dlevel-2Dfixes&d=DwICAg&c=AY-yVZ-DdqDeX_Emj_gQCkuxsL_QuG_4YQ-FxcTYVkY&r=3HmdsZESHvzaTBSHTdB6CStwTAVF1kiyCWu3SC-2oh0&m=RdhfDBbr1hkLWZhvrND5yfMkPXWo8Y6fjifJVg3Cy2DnAXEYRze5W57hZUCHBiDG&s=S8ImHwE2QisVEZBhfV9WVWTk-19TAU4IOHJRLUU-azI&e=
Regards,
Steve Landess
(512) 289-0387
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