MSALGUARD providing automatic SSO

Question

MSALGUARD providing automatic SSO

Ahmad Mujeeb 10

So with MSALGUARD, when I log in, my session is stored automatically. So in the future when I go to the same app I'm not forced to login again. Does that mean MsalGuard automatically does sso for you? I thought you needed to also use the ssoSilent function or acquireTokenSilentFunction as well?

Rukmini 36,955 Reputation points Microsoft External Staff Moderator

2026-03-31T17:20:46.4533333+00:00

Hello Ahmad Mujeeb Following up to see if the above provided information was helpful. If you have any further queries do let us know.

1 answer

Your answer

Rukmini 36,955 Reputation points Microsoft External Staff Moderator

2026-03-31T17:20:46.4533333+00:00

Hello Ahmad Mujeeb Following up to see if the above provided information was helpful. If you have any further queries do let us know.

Answer 1

Rukmini 36,955 Microsoft External Staff Moderator

Hello Ahmad Mujeeb

No, MsalGuard merely determines whether a session or account already exists and reuses it; it does not "do SSO" on its own. The guard uses MSAL's silent methods, such as acquireTokenSilent and ssoSilent, to actually accomplish SSO/token reuse.

Let me know if any further queries - feel free to reach out!

Ahmad Mujeeb 10 Reputation points

2026-03-30T19:29:14.16+00:00

Hi Rukmini

So is the guard using those functions in the background like I don't need to call them myself, right? Because right now with MsalGuard if I login there will be an existing session even after coming back a couple of days.
Rukmini 36,955 Reputation points Microsoft External Staff Moderator

2026-03-30T19:31:16.0566667+00:00

Hello Ahmad Mujeeb

Yes, when you use MsalGuard, it automatically uses acquireTokenSilent (and SSO via session cookies) in the background, so you don’t need to call them for basic route access.

But if your app needs tokens outside navigation (e.g., API calls), you still need to explicitly call MSAL methods yourself.

Share via

MSALGUARD providing automatic SSO

1 answer

Your answer