我很确定第一个只会让你退出应用程序和第二个将签署您的所有Azure AD和应用程序（因为它包括租户ID）。 

https://hajekj.net/2017/02 / 27 /至单登出或 - 未至/

Learned that SSO logout can be done by using any of the below URL's.

https://login.windows.net/common/oauth2/logout?post_logout_redirect_uri=<<Application Reply URL>>

&

https://login.windows.net/<<Tenant ID>>/oauth2/logout?post_logout_redirect_uri=<<Application Reply URL>>

But, question is what is the core difference between both URL's if any.

Thanks

Siva Pokuri.

I'm fairly certain that the first will only sign you out of the application and the second will sign you out of all of Azure AD and applications within (since it includes the Tenant ID). 

https://hajekj.net/2017/02/27/to-single-sign-out-or-not-to/