Inconsistency between doc and API for user update
According to API documentation for user, you can update the parameter extern_uid. But if you take a look on API source code, there is no way to update extern_uid with a PUT on /users/:id
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
According to API documentation for user, you can update the parameter extern_uid. But if you take a look on API source code, there is no way to update extern_uid with a PUT on /users/:id