How to fix the Oracle error ORA-28026: user with same external name already exists?

In this post, you’ll learn more about the Oracle ErrorORA-28026: user with same external name already exists with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-28026: user with same external name already exists

Reason for the Error ORA-28026: user with same external name already exists

The external name specified for the user being created or altered already exists for another user.

How to fix the Error ORA-28026: user with same external name already exists ?

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

External names must be unique among users. Specify another.