APPC problem after upgrading from TSSMVS r15.0 to r16.0.
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APPC problem after upgrading from TSSMVS r15.0 to r16.0.

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Article ID: 77356

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Updated On:

Products

Top Secret Top Secret - LDAP

Issue/Introduction

Access to APPC fails with:

========================================================================
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 **
========================================================================

Environment

Release:
Component: TSSMVS

Resolution

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.
======================================================================================

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.

Additional Information

IBM information:
htps://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.3.0/com.ibm.zos.v2r3.istrdr0/appsec.htm