Single sign-on across Snowmass apps

One sign-in for the whole ecosystem

Snowmass isn't one app — it's a small family of them (dispatch, admin, notifications, and more). Signing in to one signs you in to the others. You authenticate once and move between them without repeating the 6-digit code.

How it works

Your session cookie is scoped to the shared .snowmass.io domain rather than a single app. Because every Snowmass app lives under that domain, they all recognize the same session. Sign in to one, and the rest already know you.

What that means for you

• Less friction — no separate login per tool.
• One sign-out — ending your session applies across the apps that share it.
• Consistent identity — you're the same user everywhere, which keeps audit trails and permissions coherent across the ecosystem.

A note on environments

Cross-app single sign-on relies on the shared production domain, so it applies to the live Snowmass apps at their real addresses. In isolated development or preview setups that don't share that domain, you may sign in per app — that's expected and doesn't affect production.

If you have access to more than one app but only see one, confirm you've been granted access there; single sign-on carries your identity, not necessarily your permissions in every app.