Oracle Error ORA-26721: enqueue of the LCR not allowed

Oracle Error Message

ORA-26721: enqueue of the LCR not allowed

Reason for the Error

An apply process attempted to enqueue an LCR with a LONG column. This is not supported.

Solution

Modify rules or unset the enqueue destination to prevent LCRs with LONG columns from being enqueued by the apply process.