How to fix the Oracle error ORA-12654: Authentication conversion failed?

In this post, you’ll learn more about the Oracle ErrorORA-12654: Authentication conversion failed with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-12654: Authentication conversion failed

Reason for the Error ORA-12654: Authentication conversion failed

The authentication service was unable to convert the credentials of a user from the format specific to the format into the ORACLE format.

How to fix the Error ORA-12654: Authentication conversion failed ?

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

Enable tracing to determine the exact error.