Production OAM-Protected Site Suddenly Gives Errors "Oracle Access Manager Operation Error .... There is no authentication scheme defined .... "

(Doc ID 1641514.1)

Last updated on MARCH 08, 2017

Applies to:

COREid Access - Version and later
Information in this document applies to any platform.


An Oracle Access Manager (OAM) protected site is suddenly not accessible.

When accessing the protected application resource the following error occurs:

The site has been working for a while and now suddenly this error is occurring. No changes made on the site or in OAM configuration to trigger this.



Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms