SCIM

SCIM (System for Cross-domain Identity Management) is an open standard for automatically provisioning and deprovisioning user accounts across applications from a central identity source.

With SCIM, when a user is added, changed, or removed in the identity provider, those changes propagate automatically to connected applications, reducing manual administration and orphaned accounts.

It is commonly paired with SSO in enterprise deployments to keep access consistent and revoked promptly when someone leaves.