CBR8103I The OAM/CICS interface is already connected.

Explanation
  The OSR-to-CICS interface to this CICS® address space was previously completed.
OAM has initialized the CICS Resource
Manager Interface and OSREQ macros can be issued. This condition can
occur when the CBRICONN transaction is entered manually after initialization
is complete.

System action
 Subsystem processing continues.

Source
 Object Access Method (OAM)

Routing Code
 2

Descriptor Code
 4