I apologize for the delay on this thread.
As I understand you want to know on how you can configure an application with Azure using SAML protocol. Seems like you want to use Azure AD app proxy to configure an application.
You can follow below article to do the same. https://learn.microsoft.com/en-us/entra/identity/app-proxy/application-proxy-configure-single-sign-on-on-premises-apps
Let me know if you have any further questions.
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