Azure SSO fails when configured using older documentation.
The following error is shown.
Microsoft made changes to Azure. See Microsoft Doc here
Follow the steps below. The documentation at the following link has also been updated and is accurate. "Configuring CloudSOC at Azure AD"
Identifier (Entity ID) = https://app.eu.elastica.net/ (Make sure this is default)
Reply URL = https://app.eu.elastica.net/saml2/acs/
Sign on URL = https://app.eu.elastica.net/saml2/acs/
Relay State = leave blank
Logout URL = https://app.eu.elastica.net/saml2/ls/