Cross-app SSO for microservices A MUST HAVE

Cross-app SSO is not currently available in Base44 - each app has its own isolated authentication system, and there's no built-in way to share authentication tokens across multiple separate Base44 apps, even when they're on subdomains of the same domain.

I understand you've submitted this to the feature roadmap, which is the right place for it. This is indeed a common need for anyone building complex systems with microservices architecture.

Workarounds don't work:

The authentication tokens are app-scoped, meaning a token issued by one Base44 app won't be recognized by another Base44 app. The backend functions, even with custom handshakes, can't share session state across different apps because each app maintains its own separate authentication context.

This means for large apps, you are stuck. The limit is 600 pages for base44 apps. So, any type of multi-faceted app will reach a point where you have to build branches of your app in another project…and then… there’s no cross-app SSO and even custom handshakes won’t work properly.