MS Entra Proxy + IdP V5.1.4 - RelayState missing error?

[Lazar, Michael E]

There is a option to add the relayState parameter in Azure - but it seems that the session doesn't exist when I enter something like e1s1, e1s0 or e0s0
Doesn't seem like there is much online as to what is expected. What I don't understand is that in my test tenant where things were working the last time this field is blank.

Thanks!
-Michael.

-----Original Message-----
From: Cantor, Scott <cantor.2 at osu.edu> 
Sent: Monday, May 19, 2025 6:18 AM
To: Shib Users <users at shibboleth.net>
Cc: Lazar, Michael E <michael.lazar at csun.edu>
Subject: Re: MS Entra Proxy + IdP V5.1.4 - RelayState missing error?

There's nothing the IdP can do about that error, Entra isn't sending it back. My guess is it's actually responding with an error or something of that nature (though not including RelayState would still be a bug in that case).

You'd have to trace it all and see what's coming back to the POST endpoint.

-- Scott