diff --git a/README.md b/README.md
index 5d0bfd1..c3d19a9 100644
--- a/README.md
+++ b/README.md
@@ -7,8 +7,10 @@
   - [Synopsis](#synopsis)
   - [WARNING](#warning)
   - [Features](#features)
-    - [configuring user access](#configuring-user-access)
-    - [Additional users](#additional-users)
+    - [configuring UI user access](#configuring-ui-user-access)
+    - [Additional UI users](#additional-ui-users)
+    - [Adding contacts](#adding-contacts)
+    - [Adding contact groups](#adding-contact-groups)
   - [Repo Documentation](#repo-documentation)
   - [Dependencies](#dependencies)
   - [Deployment](#deployment)
@@ -40,7 +42,7 @@ At this stage, the module is being redeveloped and being built to the latest sta
 - configures the main nagios configuration file and sets values as (pre)configured per values in params, which can be overwritten.
 - if `ng_include_nrpe`is set to `true`, the confdroid_nrpe module is automatically applied on clients ([confdroid_nrpe](https://sourcecode.confdroid.com/confdroid/confdroid_nrpe) must be in the catalogue then)
 
-### configuring user access
+### configuring UI user access
 
 Main access to the user interface requires defining an administrative user and password via `ng_main_user` and `ng_main_password`. The password should be encrypted like this: 
 
@@ -58,7 +60,7 @@ testuser: $2y$05$rNy/P22OfYZlpdEPnCAIg.OUizRD34P7pDRwUGiaYjH44PcRuZ2ia
 
 Use that value to override the default password in ENC or Hiera, if you use it.
 
-### Additional users
+### Additional UI users
 
 The main user is automatically created. If you want to add more users, this should be done via the define confdroid_nagios::server::access. In your control repo, site.pp etc. address the access define like this:
 
@@ -69,6 +71,33 @@ confdroid_nagios::server::access { 'example':
 }
 ```
 
+### Adding contacts
+
+In order to add contacts for the notifications, address the define `confdroid_nagios::nagios::objects::add_contact` in your config repo, site.pp etc. like this:
+
+```puppet
+  confdroid_nagios::nagios::objects::add_contact { 'example_user':
+    ng_contact_name   =>  'example_user',
+    ng_contact_alias  =>  'Example User',
+    ng_contact_groups =>  'admins',
+    ng_contact_email  =>  'example@example.net',
+  }
+```
+
+This requires the contact groups to be in place as well.
+
+### Adding contact groups
+
+In order to add contact groups for the notifications, address the define `confdroid_nagios::nagios::objects::add_contactgroups` in your config repo, site.pp etc. like this:
+
+```puppet
+  confdroid_nagios::nagios::objects::add_contactgroups { 'example_group':
+    ng_contactgroup_name      => 'example_group',
+    ng_contactgroup_alias     => 'Example Group',
+    ng_contactgroup_register  => '1',
+  }
+```
+
 ## Repo Documentation
 
 See the full Puppet documentation including parameters in `docs/index.html`
diff --git a/manifests/nagios/objects/add_contactgroups.pp b/manifests/nagios/objects/add_contactgroups.pp
new file mode 100644
index 0000000..5547ad1
--- /dev/null
+++ b/manifests/nagios/objects/add_contactgroups.pp
@@ -0,0 +1,30 @@
+## confdroid_nagios::nagios::objects::add_contactgroups.pp
+# Module name: confdroid_nagios
+# Author: 12ww1160 (12ww1160@confdroid.com)
+# @summary  Define populates /etc/nagios/conf.d/nagios_add_contactgroups through
+#   external puppet rules.
+# @param [string] ng_contactgroup_name Specify the short name of the
+#   contact group.
+# @param [string] ng_contactgroup_alias Specify the alias (long name) of the
+#   contact group
+# @param [string] ng_contactgroup_register Specify whether the contact group
+#   should be registered in Nagios.
+################################################################################
+define confdroid_nagios::nagios::objects::add_contactgroups (
+
+  Optional[String] $ng_contactgroup_name     = undef,
+  Optional[String] $ng_contactgroup_alias    = undef,
+  String $ng_contactgroup_register           = '1',
+
+) {
+  $ng_nagios_server         = $confdroid_nagios::params::ng_nagios_server
+  $ng_tgt_contactgroup_add  = $confdroid_nagios::params::ng_tgt_contactgroup_add
+  $ng_cntctgrps_rule_erb    = $confdroid_nagios::params::ng_cntctgrps_rule_erb
+
+  if $ng_nagios_server == $fqdn {
+    concat::fragment { $name:
+      target  => $ng_tgt_contactgroup_add,
+      content => template($ng_cntctgrps_rule_erb),
+    }
+  }
+}
diff --git a/manifests/nagios/objects/add_contactgroups_rules.pp b/manifests/nagios/objects/add_contactgroups_rules.pp
new file mode 100644
index 0000000..91f038e
--- /dev/null
+++ b/manifests/nagios/objects/add_contactgroups_rules.pp
@@ -0,0 +1,40 @@
+## confdroid_nagios::nagios::objects::add_contactgroups_rules.pp
+# Module name: confdroid_nagios
+# Author: 12ww1160 (12ww1160@confdroid.com)
+# @summary  Class manages /etc/nagios/conf.d/nagios_add_contactgroups.cfg file
+#   and populates through define and external puppet rules
+# @example
+#   confdroid_nagios::nagios::objects::add_contactgroups { 'example_group':
+#     ng_contactgroup_name      => 'example_group',
+#     ng_contactgroup_alias     => 'Example Group',
+#     ng_contactgroup_register  => '1',
+#   }
+################################################################################
+class confdroid_nagios::nagios::objects::add_contactgroups_rules (
+
+) inherits confdroid_nagios::params {
+  if $ng_nagios_server == $fqdn {
+    # manage /etc/nagios/conf.d/nagios_add_contactgroups.cfg
+
+    concat { $ng_tgt_contactgroup_add:
+      ensure   => present,
+      path     => $ng_tgt_contactgroup_add,
+      owner    => $ng_user,
+      group    => $ng_user,
+      mode     => '0640',
+      selrange => s0,
+      selrole  => object_r,
+      seltype  => nagios_etc_t,
+      seluser  => system_u,
+      notify   => Service[$ng_service],
+    }
+
+    # manage file header
+
+    concat::fragment { 'contactgroups_header':
+      target  => $ng_tgt_contactgroup_add,
+      content => template($ng_cntctgrps_head_erb),
+      order   => '000',
+    }
+  }
+}
diff --git a/manifests/params.pp b/manifests/params.pp
index 047276f..8134bce 100644
--- a/manifests/params.pp
+++ b/manifests/params.pp
@@ -48,6 +48,39 @@ class confdroid_nagios::params (
 # httpd
   Boolean $ng_use_https             = false,
 
+# check command parameters
+## ping
+  String $ng_ping_warn               = '100.0,20%',
+  String $ng_ping_crit               = '500.0,60%',
+  String $ng_ping_ensure             = 'present',
+## disk
+  String $ng_disk_warn               = '20%',
+  String $ng_disk_crit               = '10%' ,
+  String $ng_disk_ensure             = 'present',
+# swap
+  String $ng_swap_warn               = '20',
+  String $ng_swap_crit               = '10',
+  String $ng_swap_ensure             = 'present',
+# users
+  String $ng_users_warn              = '20',
+  String $ng_users_crit              = '50',
+  String $ng_users_ensure            = 'present',
+#total procs
+  String $ng_procs_tot_warn          = '330',
+  String $ng_procs_tot_crit          = '400',
+  String $ng_procs_tot_param         = 'RDST',
+  String $ng_procs_tot_ens           = 'present',
+# zombie procs
+  String $ng_procs_z_warn            = '10',
+  String $ng_procs_z_crit            = '30',
+  String $ng_procs_z_param           = 'Z',
+  String $ng_procs_z_ensure          = 'present',
+# load
+  String $ng_load_warn               = '5.00,4.00,3.00',
+  String $ng_load_crit               = '10.00,6.00,4.00',
+  String $ng_load_ensure             = 'present',
+
+
 ) {
 # Default facts
   $fqdn                     = $facts['networking']['fqdn']