How to fix the Oracle error ORA-28270: Malformed user nickname for password authenticated global user.?

In this post, you’ll learn more about the Oracle ErrorORA-28270: Malformed user nickname for password authenticated global user. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-28270: Malformed user nickname for password authenticated global user.

Reason for the Error ORA-28270: Malformed user nickname for password authenticated global user.

An attempt to login as password-auuthenticated global user with a malformed user nickname.

How to fix the Error ORA-28270: Malformed user nickname for password authenticated global user. ?

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

Make sure the nickname is valid and re-login.