ATB023I

Explanation
 The APPC address space failed to join the Advanced
Program-to-Program Communication (APPC)/cross-system coupling facility
(XCF) group during initialization processing due to an environment
error.
 In the message text:  xxxxxxxx
The return code from IXCJOIN (in hexadecimal).
yyyyyyyy
The reason code from IXCJOIN (in hexadecimal).

System action
 The system continues processing without APPC.

Operator response
 Notify the system programmer. At the request
of the system programmer, restart the APPC address space.

System programmer response
 The IXCJOIN return and reason codes
explain the error. If, for example, the message shows a return code
of 4 and a reason code of C, the maximum number of groups already
exists.
 For the other IXCJOIN return and reason codes, see z/OS MVS Programming: Sysplex Services Reference. 
When you have corrected the problem, notify the operator to restart
the APPC address space.

Module
 ATBINGI

Source
 APPC/MVS

Routing Code
 2

Descriptor Code
 1

Automation
 Trap the return and reason
code from IXCJOIN and translate it into text. Notify the system programmer.