In Oracle Business Event activity the custom business event name has configured and then execute the BusinessWorks process,
BusinessWorks process throws the error "[BW-Plugin]  BW-ORACLEEBS-200024 Get an non-subscription event: ??? . Ignore it"
 

Copy the orai18n.jar file into /plugins/lib

TIBCO ActiveMatrix BusinessWorks Plug-in for Oracle E-Business Suite 1.3.0 TIBCO ActiveMatrix BusinessWorks 5.13

To resolve this issue, there are two scenario-based solutions:

[1] The error "Get an non-subscription event: ??? . Ignore it." occurred when Event Name is blank or "wrong Event Name" is configured in OracleBusinessEvent BW activity.

[2] As well as the error "Get a non-subscription event: ??? . Ignore it." occurred when Oracle mapping the Oracle Object Type (Event Type used in queue table) to Java has character set conversion issue.
The solution is that download the orai18n.jar from
http://www.oracle.com/technetwork/database/enterprise-edition/jdbc-10201-088211.html.
Please follow the steps below to test:
a.) stop designer
b.) Copy the jar file into <BW_HOME>/plugins/lib
c.) start designer to test.

Notes: orai18n.jar:  It contains classes for NLS support in Oracle
Object and Collection types.
Also, find attached orai18n.jar or under [ORACLE_HOME]/jlib/orai18n.jar,  if haven’t permission to download from Oracle website.

Need of orai18n.jar:
The basic JAR files (classes12.jar and ojdbc14.jar) contain all the necessary classes to provide complete globalization support for:
1. Oracle character sets for CHAR, VARCHAR. LONGVARCHAR, or CLOB data that is not being retrieved or inserted as a data member of an Oracle 8 Object or Collection type.
2. CHAR or VARCHAR data members of Object and Collection for the character setsUS7ASCII, WE8DEC, WE8ISO8859P1, WE8MSWIN1252, and UTF8.

To use any other character sets in CHAR or VARCHAR data members of Objects or Collections, need to include orai18n.jar in the application's CLASSPATH.
The file orai18n.jar contains many important character set and globalization support files.