SAML Change Notify Protocol

I’d like to be able to support this scenario as both the identity provider and service provider:

An employee leaves the company. The service provider sends a ChangeNotify request indicating the user is retired to the identity provider. The identity provider disables the employee’s accounts.

I’ve tried looking for documentation on how to do this in the developer guide (, but haven’t found anything yet.

Here is the documentation for the protocol:

Can someone point me in the right direction?

At this stage we don’t support the SAML change notify protocol.
We’re not aware of any SAML offerings that do and I suspect most if not all third parties won’t.
If the protocol were to become in use we would of course provide support.
You might want to take a look at SCIM.