How to fix the Oracle error ORA-31418: source schema string does not exist?

In this post, you’ll learn more about the Oracle ErrorORA-31418: source schema string does not exist with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-31418: source schema string does not exist

Reason for the Error ORA-31418: source schema string does not exist

Trying to create a synchronous change table and the source schema did not match any existing schema names in the database.

How to fix the Error ORA-31418: source schema string does not exist ?

You can fix this error in Oracle by following the below steps

Specify the name of an existing schema.