idp v3 authentication - The username you entered cannot be identified

[Sundeep Singh Nanuwa]

On 15/03/16 15:34, Nate Klingenstein wrote:
>> when logging in with valid credentials the SP reports back "The username you entered cannot be identified.”
> It depends on the SP implementation, but “it's a trap”.  SAML has a unique method of relaying authentication failures built into the protocol which is rarely used for any other failure.  It happens at the IdP, but the SP reports it.  You should see the protocol message if you crank up logs.
>
I mean the IdP login page reports back "The username you entered cannot 
be identified - not the SP.