The following warning messages are observed during activation when trying to activate an Indexed-Organized table with overflow segment on Oracle 9i:
Warning 2009-05-07 19:49:02.961935 29718 1 Activation: Indexed-Organized table with overflow segment on Oracle 9i is not supported. Skipping (OWNER.TABLENAME) (activating sid SID_name) [module ocf]
Indexed-Organized table with overflow segment on Oracle 9i are not supported in Shareplex at the time of writing of this solution.
Replication of Indexed-Organized table with overflow segment on Oracle 9i is not supported, though such objects are supported for Oracle 10g, unless the compatibility parameter in 10g is set to 9i. The activation process simply ignores the existence of the object, namely Indexed-Organized table. The activation on other supported objects will continue without any error. However, it is recommened to identify and remove such objects from the config file prior to activating the file.
The Shareplex Admin Guide Chapter titled "Shareplex Replication" section " What SharePlex does not replicate" delves on what is excluded. The list is updated as and when new objects, datatypes, features are included in supported list.
Also see SOL52332 for some other useful information regarding interpretation of supported and non-supported features.