The SCIM protocol uses the REST concept to define the actions a SCIM Consumer can perform on a resource managed by a SCIM Service Provider. These actions are:

GET Reads a resource (or resources) from the Service Provider
POST Creates a new resource at the Service Provider
PUT Updates an existing resource, as this action requires the entire resource provided in the body, it is more like a replace than an update

Updates an existing resource with changes (where supported).

Note: The PATCH action is optional and not supported in some implementations

DELETE Deletes a resource at the Service Provider