Keycloak provides a very convenient method of reducing workload to either database or active directory, and that is by using cache mechanism. But sometimes we want to trigger clearing cache manually, for example when there is some changes into the user data which coming from external applications.
We can do that by going to Keycloak menu, click on Realm Settings, and go to Cache tabs. We can clear cache by clicking on the User Cache Clear button.
But becareful since it will clear the whole user-cache, and not a specific user only.