SSO in multitenant application like slack

sandiprghane

Hey
I want to implement single sign on in multitenant application like slack
I have created per organisation wise fusion tenant and application.

if Bob is tenant-A and tenant-B user and he is authenticated in tenant-A application. so i want Bob is automatically logged in tenant-B application.

Bob -> tenant-A -> application-A
Bob -> tenant-B -> application-B

maciej.wisniowski

@sandiprghane The Tenant feature is specifically built to separate users from different tenants so that user Bob in tenant A is a different entity than user Bob from tenant B. Because of this, it is not possible to have SSO between tenants. Have a look at the docs:
https://fusionauth.io/docs/v1/tech/core-concepts/tenants/

You might rather want to use multiple applications within a single tenant + user registrations.

joshua

@maciej-wisniowski

Great thought!

@sandiprghane, I would recommend following this advice. FusionAuth is mult-tenant, but oftentimes another application is all that is needed (and not another tenant). Everything scopes back to a tenant, including users. So if you have two products that share common users, likely you will just need two applications in FusionAuth (for instance).

Thanks,
Josh

sandiprghane

@joshua Thanks for replying

sandiprghane

@maciej-wisniowski that works.