01Define the boundary
Identify the actor, target resource and operation that b2b saas is meant to govern.
02Configure the policy
Model tenant membership explicitly, assign tenant-scoped roles, and expose only the configuration a tenant administrator is allowed to manage. Treat domains, SSO, SCIM and tenant network rules as separate policy surfaces.
03Exercise the edge cases
A tenant admin invites a member and manages a SAML connection for their organisation without gaining control over unrelated tenants. Also test the path that should be denied, deferred or sent for review.
04Review the outcome
Check that the resulting state is understandable and that the decision can be investigated later. For audit-enabled operations, confirm the relevant actor and context are captured.