ORA-31504: cannot alter or drop predefined change source

Cause: The caller attempted to alter or drop one of the predefined change sources HOTLOG_SOURCE or SYNC_SOURCE.

Action: Do not attempt to alter or drop a predefined change source or correct call to supply the name of a user-created change source.

Error Type: ORA

• Additional information for ORA-31504: cannot alter or drop predefined change source31504
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