The Security Assertion Markup Language (SAML) is a secured method for exchanging authentication and authorization data between an identity provider and a service provider. When a user logs in to an SAML enabled application, the service provider requests authorization from the identity provider. The identity provider authenticates the credentials of the user and returns the authorization for the user to the service provider. The user can use the application after this.
You can download the SAML certificates from the Identity Provider (Azure, OneLogin, and so on) and upload to this field.