def METHOD_NAME(
    staff_api_client, customer_user, permission_manage_settings
):
    # given
    user_id = graphene.Node.to_global_id("User", customer_user.id)
    variables = {"input": {"user": user_id}}
    # when
    response = staff_api_client.post_graphql(
        MUTATION_STAFF_NOTIFICATION_RECIPIENT_CREATE,
        variables,
        permissions=[permission_manage_settings],
    )
    # then
    content = get_graphql_content(response)
    assert content["data"]["staffNotificationRecipientCreate"] == {
        "staffNotificationRecipient": None,
        "errors": [
            {"code": "INVALID", "field": "user", "message": "User has to be staff user"}
        ],
    }