Access to APPC fails with:
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27/03/18 16:30:20 ssss *MISSING APPC APW ATBFMFPE *1C*-03 INI *MISSING
27/03/18 16:30:20 ssss *MISSING APPC APW ATBFMFPE *08*-07 INI ** UNDEFINED ACID **
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VTAM member changed from:
=====================================
VBUILD TYPE=APPL
...
APPC=YES,
...
SECACPT=CONV,
=====================================
...to:
=====================================
VBUILD TYPE=APPL
...
APPC=YES,
...
SECACPT=ALREADYV,
=====================================
Per IBM information: https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.3.0/com.ibm.zos.v2r3.istrdr0/appsec.htm
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SECACPT=CONV - Specifies that this logical unit supports conversation requests containing access security subfields.
SECACPT=ALREADYV - Specifies that this logical unit supports conversation requests containing access security subfields. The logical unit also accepts the already-verified indications that it receives in conversation requests from partner LUs.
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In Top Secret:
1.) Define the ACID 'APPC', making sure it has both FACILITY(STC) and FACILITY(APPC).
2.) Define the Started Task.
3.) Define the MASTFAC.
4.) Re-cycle APPC.