Single logout idp (octa) -> sp.


Hello, I would like to know how to carry out a single logout process when the initiator is okta. My client is an application that uses spring-security-saml. At the moment when the logout is initiated by SP (my client) everything goes well - it is logged out of the application as well as from okta. However, in the case when I log out first from the okta, the client is still logged in. How okta should know to which endpoint should send LogoutRequest ? The configuration only has a field Single Logout URL but it’s location where the logout response should be sent.
Thank you in advance for your help.