Select Add > Enterprise Applications from the left menu

Select New application

Select Create your own application

Add the name as Runn SSO and select Integrate any other application you don't find in the gallery

Select Manage > Single sign-on from the left menu

Under Select a sign-in method, choose SAML

In Manage > Single sign-on under Basic SAML Configuration select edit

Copy the Issuer / Audience / SP Entity field from Runn into the Identifier (Entity ID) field in Azure AD

Copy the Runn SSO Callback URL from Runn into the Reply URL field in Azure AD

Leave the rest blank and press Save

Under Attributes & Claims press Edit

Under "Additional claims", change the name claim value to user.displayname, press Save

Visit Account Settings and press Edit

Copy the Login URL and paste it into SSO Target URL within Runn

Download the Certificate (Base64) and copy the value inside this. Add the value into IDP Certificate.
This should be base64 encoded and start with
-----BEGIN CERTIFICATE-----

Leave Email claim as the default value

Leave Name claim as the default value

Press the Save on the SAML Settings box