The DSP identifier you specified is invalid

[Nate Klingenstein]

Hanaa,

> the authentication process was running just fine, but recently am getting
> the error below at the Identity Provider (Idp). checking shibd.log file
> found as below. am wondering if i should specify  the
> "AssertionconsumerserviceURL" in the SAML request? if so how to do so?

Either an AssertionConsumerServiceIndex or an AssertionConsumerServiceURL is fine as far as Shibboleth and the specification go.  OpenAthens may have its own requirements.  Your problem description would indicate that they changed something.

> " The DSP identifier you specified is invalid"

This appears to be an OpenAthens error message, not a Shibboleth error message, and I'm not sure what a DSP is.  I'd ask them.

Thanks,
Nate.