diff --git a/roles/0-init/tasks/main.yml b/roles/0-init/tasks/main.yml
index f9369d65d..a2fadff04 100644
--- a/roles/0-init/tasks/main.yml
+++ b/roles/0-init/tasks/main.yml
@@ -123,18 +123,6 @@
 # We decided to enable mysql unconditionally.
 #  when: elgg_enabled or rachel_enabled or owncloud_enabled or phpmyadmin_enabled or wordpress_enabled or iiab_menu_install
 
-# MongoDB is auto-included by Sugarizer as of Feb 2019, thanks to: roles/sugarizer/meta/main.yml
-#
-# 2019-07-08: mongodb_install is completely ignored.  FYI mongodb_enabled: False
-# works but is ineffective, as Sugarizer starts mongodb's systemd svc on its own
-#
-## Late 2017: Had commented out MongoDB on a trial basis, for a more basic/lightweight Sugarizer, per https://github.com/iiab/iiab/pull/427
-#- name: Turn on both vars for MongoDB if sugarizer_enabled
-#  set_fact:
-#    mongodb_install: True
-#    mongodb_enabled: True
-#  when: sugarizer_enabled | bool
-
 # There might be other db's
 - name: Turn on both vars for PostgreSQL if moodle_enabled or pathagar_enabled
   set_fact:
diff --git a/roles/0-init/tasks/validate_vars.yml b/roles/0-init/tasks/validate_vars.yml
index 4e117a7e8..b115afdc4 100644
--- a/roles/0-init/tasks/validate_vars.yml
+++ b/roles/0-init/tasks/validate_vars.yml
@@ -125,3 +125,10 @@
     quiet: yes
   loop: "{{ vars_checklist }}"
   #register: var_pairs_validation
+
+- name: 'DISALLOW "XYZ_install: False" WITH "XYZ_installed: True" ...for all {{ vars_checklist | length }} var pairs'
+  assert:
+    that: "{{ item }}_install or {{ item }}_installed is undefined"
+    fail_msg: "{{ item }} already installed please set to True in: /etc/iiab/local_vars.yml"
+    quiet: yes
+  loop: "{{ vars_checklist }}"
diff --git a/roles/sugarizer/templates/sugarizer.service b/roles/sugarizer/templates/sugarizer.service
index 3b1e75cfa..274877f10 100644
--- a/roles/sugarizer/templates/sugarizer.service
+++ b/roles/sugarizer/templates/sugarizer.service
@@ -1,8 +1,9 @@
 [Unit]
 Description=Node.js Sugarizer Server
+# Forces mongodb to start up if not started
 Requires=mongodb.service
+# Wait for mongodb service to run first
 After=mongodb.service
-# Requires mongodb service to run first
 
 [Service]
 WorkingDirectory=/opt/iiab/sugarizer-server/
diff --git a/vars/default_vars.yml b/vars/default_vars.yml
index fa6082e0d..8ef3ff878 100644
--- a/vars/default_vars.yml
+++ b/vars/default_vars.yml
@@ -446,10 +446,16 @@ moodle_enabled: False
 
 # MongoDB (/library/dbdata/mongodb) is used by Sugarizer:
 # The mongodb playbook itself is later invoked by roles/sugarizer/meta/main.yml
-# 2019-07-08: mongodb_install is completely ignored.  FYI mongodb_enabled: False
-# works but is ineffective, as Sugarizer starts mongodb's systemd svc on its own
-mongodb_install: False
+# 2019-07-08: mongodb_install is completely ignored as it is installed on demand as a dependency.
+# 2020-01-23 set to True for installed: True test
+mongodb_install: True
+
+# FYI mongodb_enabled: False works but is ineffective but is required by mongodb/tasks/enable.yml
+# to shutdown the service and log status but that is misleading as Sugarizer starts mongodb's systemd
+# svc on its own due to requires=mongodb.service within sugarizer.service file
 mongodb_enabled: False
+
+# port assignment
 mongodb_port: 27018
 
 # Regional OSM vector maps use far less disk space than bitmap/raster versions.