diff --git a/compensation/views.py b/compensation/views.py
index ec6ddd7e..7f6923a0 100644
--- a/compensation/views.py
+++ b/compensation/views.py
@@ -15,6 +15,7 @@ from konova.utils.message_templates import FORM_INVALID
 
 
 @login_required
+@any_group_check
 def index_view(request: HttpRequest):
     """
     Renders the index view for compensation
@@ -56,6 +57,7 @@ def edit_view(request: HttpRequest, id: str):
 
 
 @login_required
+@any_group_check
 def open_view(request: HttpRequest, id: str):
     # ToDo
     pass
@@ -81,6 +83,7 @@ def remove_view(request: HttpRequest, id: str):
 
 
 @login_required
+@any_group_check
 def account_index_view(request: HttpRequest):
     """
     Renders the index view for eco accounts
@@ -122,6 +125,7 @@ def account_edit_view(request: HttpRequest, id: str):
 
 
 @login_required
+@any_group_check
 def account_open_view(request: HttpRequest, id: str):
     # ToDo
     pass
diff --git a/intervention/views.py b/intervention/views.py
index f325f847..c9c27c8c 100644
--- a/intervention/views.py
+++ b/intervention/views.py
@@ -15,6 +15,7 @@ from konova.utils.user_checks import in_group
 
 
 @login_required
+@any_group_check
 def index_view(request: HttpRequest):
     """
     Renders the index view for Interventions
@@ -115,6 +116,7 @@ def new_document_view(request: HttpRequest, id: str):
 
 
 @login_required
+@any_group_check
 def open_view(request: HttpRequest, id: str):
     """ Renders a detail view for viewing an intervention's data
 
diff --git a/konova/decorators.py b/konova/decorators.py
index f4a3ae8a..3d1a5473 100644
--- a/konova/decorators.py
+++ b/konova/decorators.py
@@ -46,6 +46,25 @@ def superuser_required(function):
     return wrap
 
 
+def any_group_check(function):
+    """
+    Checks for any group membership. Adds a message in case of having none.
+
+    """
+    @wraps(function)
+    def wrap(request, *args, **kwargs):
+        user = request.user
+        # Inform user about missing group privileges!
+        groups = user.groups.all()
+        if not groups:
+            messages.info(
+                request,
+                _("+++ Attention: You are not part of any group. You won't be able to create, edit or do anything. Please contact an administrator. +++")
+            )
+        return function(request, *args, **kwargs)
+    return wrap
+
+
 def default_group_required(function):
     """
     A decorator for functions which shall only be usable for users of specific groups.
diff --git a/konova/views.py b/konova/views.py
index 9a33a17f..bb6ee96e 100644
--- a/konova/views.py
+++ b/konova/views.py
@@ -16,6 +16,7 @@ from django.utils.translation import gettext_lazy as _
 from compensation.models import Compensation, EcoAccount
 from intervention.models import Intervention
 from konova.contexts import BaseContext
+from konova.decorators import any_group_check
 from konova.forms import RemoveModalForm
 from konova.models import Document
 from news.models import ServerMessage
@@ -37,6 +38,7 @@ def logout_view(request: HttpRequest):
 
 
 @login_required
+@any_group_check
 def home_view(request: HttpRequest):
     """
     Renders the landing page
diff --git a/locale/de/LC_MESSAGES/django.mo b/locale/de/LC_MESSAGES/django.mo
index cfda5044..6c35190b 100644
Binary files a/locale/de/LC_MESSAGES/django.mo and b/locale/de/LC_MESSAGES/django.mo differ
diff --git a/locale/de/LC_MESSAGES/django.po b/locale/de/LC_MESSAGES/django.po
index a5157759..88b904c6 100644
--- a/locale/de/LC_MESSAGES/django.po
+++ b/locale/de/LC_MESSAGES/django.po
@@ -6,14 +6,14 @@
 #: compensation/forms.py:29 compensation/forms.py:34 compensation/forms.py:47
 #: intervention/filters.py:26 intervention/filters.py:40
 #: intervention/filters.py:47 intervention/filters.py:48 konova/forms.py:85
-#: konova/forms.py:177 konova/forms.py:247 konova/forms.py:252
-#: konova/forms.py:264 konova/forms.py:275 konova/forms.py:288 user/forms.py:38
+#: konova/forms.py:177 konova/forms.py:248 konova/forms.py:253
+#: konova/forms.py:265 konova/forms.py:276 konova/forms.py:289 user/forms.py:38
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2021-08-02 14:06+0200\n"
+"POT-Creation-Date: 2021-08-03 09:19+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -24,7 +24,7 @@ msgstr ""
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
 #: compensation/forms.py:28
-#: intervention/templates/intervention/detail/includes/eco-account-withdraws.html:31
+#: intervention/templates/intervention/detail/includes/eco-account-withdraws.html:33
 msgid "Amount"
 msgstr "Menge"
 
@@ -33,7 +33,7 @@ msgid "Amount in Euro"
 msgstr "Betrag in Euro"
 
 #: compensation/forms.py:33
-#: intervention/templates/intervention/detail/includes/payments.html:29
+#: intervention/templates/intervention/detail/includes/payments.html:31
 msgid "Due on"
 msgstr "Fällig am"
 
@@ -58,26 +58,26 @@ msgid "Add a payment for intervention '{}'"
 msgstr "Neue Ersatzzahlung zu Eingriff '{}' hinzufügen"
 
 #: compensation/tables.py:24 compensation/tables.py:164
-#: intervention/forms.py:28 intervention/tables.py:23
-#: intervention/templates/intervention/detail/includes/compensations.html:28
+#: intervention/forms.py:29 intervention/tables.py:23
+#: intervention/templates/intervention/detail/includes/compensations.html:30
 msgid "Identifier"
 msgstr "Kennung"
 
 #: compensation/tables.py:29 compensation/tables.py:169
-#: intervention/forms.py:35 intervention/tables.py:28
-#: intervention/templates/intervention/detail/includes/compensations.html:31
-#: intervention/templates/intervention/detail/includes/documents.html:26
-#: intervention/templates/intervention/detail/view.html:60 konova/forms.py:246
+#: intervention/forms.py:36 intervention/tables.py:28
+#: intervention/templates/intervention/detail/includes/compensations.html:33
+#: intervention/templates/intervention/detail/includes/documents.html:28
+#: intervention/templates/intervention/detail/view.html:64 konova/forms.py:247
 msgid "Title"
 msgstr "Bezeichnung"
 
 #: compensation/tables.py:34 intervention/tables.py:33
-#: intervention/templates/intervention/detail/view.html:92
+#: intervention/templates/intervention/detail/view.html:96
 msgid "Checked"
 msgstr "Geprüft"
 
 #: compensation/tables.py:40 intervention/tables.py:39
-#: intervention/templates/intervention/detail/view.html:106
+#: intervention/templates/intervention/detail/view.html:110
 msgid "Recorded"
 msgstr "Verzeichnet"
 
@@ -128,7 +128,7 @@ msgstr "Für Sie freigegeben - Datensatz kann bearbeitet werden"
 msgid "Access not granted"
 msgstr "Nicht freigegeben - Datensatz nur lesbar"
 
-#: compensation/tables.py:174 konova/forms.py:251
+#: compensation/tables.py:174 konova/forms.py:252
 msgid "Created on"
 msgstr "Erstellt"
 
@@ -148,19 +148,19 @@ msgstr "Bearbeite {}"
 msgid "Delete {}"
 msgstr "Lösche {}"
 
-#: compensation/views.py:77
+#: compensation/views.py:79
 msgid "Compensation removed"
 msgstr "Kompensation entfernt"
 
-#: compensation/views.py:151
+#: compensation/views.py:156
 msgid "Payment added"
 msgstr "Zahlung hinzugefügt"
 
-#: compensation/views.py:185
+#: compensation/views.py:191
 msgid "Payment removed"
 msgstr "Zahlung gelöscht"
 
-#: compensation/views.py:210
+#: compensation/views.py:217
 msgid "Withdraw removed"
 msgstr "Abbuchung entfernt"
 
@@ -180,98 +180,99 @@ msgstr "Gemarkung"
 msgid "Search for district"
 msgstr "Nach Gemarkung suchen"
 
-#: intervention/forms.py:31
+#: intervention/forms.py:32
 msgid "Generated automatically if none was given"
 msgstr "Wird automatisch erzeugt, falls nicht angegeben"
 
-#: intervention/forms.py:40
+#: intervention/forms.py:41
 msgid "Type"
 msgstr "Typ"
 
-#: intervention/forms.py:43
+#: intervention/forms.py:44
 msgid "Which intervention type is this"
 msgstr "Welcher Eingriffstyp"
 
-#: intervention/forms.py:46
-#: intervention/templates/intervention/detail/view.html:68
+#: intervention/forms.py:47
+#: intervention/templates/intervention/detail/view.html:72
 msgid "Law"
 msgstr "Gesetz"
 
-#: intervention/forms.py:49
+#: intervention/forms.py:50
 msgid "Based on which law"
 msgstr "Basiert auf welchem Recht"
 
-#: intervention/forms.py:52
-#: intervention/templates/intervention/detail/view.html:88
+#: intervention/forms.py:53
+#: intervention/templates/intervention/detail/view.html:92
 msgid "Intervention handler"
 msgstr "Eingriffsverursacher"
 
-#: intervention/forms.py:55
+#: intervention/forms.py:56
 msgid "Who performs the intervention"
 msgstr "Wer führt den Eingriff durch"
 
-#: intervention/forms.py:58
+#: intervention/forms.py:59
 msgid "Data provider"
 msgstr "Datenbereitsteller"
 
-#: intervention/forms.py:60
+#: intervention/forms.py:61
 msgid "Who provides the data for the intervention"
 msgstr "Wer stellt die Daten für den Eingriff zur Verfügung"
 
-#: intervention/forms.py:65
+#: intervention/forms.py:66
 msgid "Organization"
 msgstr "Organisation"
 
-#: intervention/forms.py:71
+#: intervention/forms.py:72
 msgid "Data provider details"
 msgstr "Datenbereitsteller Details"
 
-#: intervention/forms.py:74
+#: intervention/forms.py:75
 msgid "Further details"
 msgstr "Weitere Details"
 
-#: intervention/forms.py:87
+#: intervention/forms.py:88
 msgid "Map"
 msgstr "Karte"
 
-#: intervention/forms.py:89
+#: intervention/forms.py:90
 msgid "Where does the intervention take place"
 msgstr "Wo findet der Eingriff statt"
 
-#: intervention/forms.py:97
+#: intervention/forms.py:98
 msgid "Files"
 msgstr "Dateien"
 
-#: intervention/forms.py:104
+#: intervention/forms.py:105
 msgid "New intervention"
 msgstr "Neuer Eingriff"
 
-#: intervention/forms.py:151
+#: intervention/forms.py:152
 msgid "Edit intervention"
 msgstr "Eingriff bearbeiten"
 
-#: intervention/forms.py:245
+#: intervention/forms.py:246
 msgid "Share link"
 msgstr "Freigabelink"
 
-#: intervention/forms.py:247
+#: intervention/forms.py:248
 msgid "Send this link to users who you want to have writing access on the data"
 msgstr "Andere Nutzer erhalten über diesen Link Zugriff auf die Daten"
 
-#: intervention/forms.py:256
+#: intervention/forms.py:257
+#: intervention/templates/intervention/detail/view.html:142
 msgid "Shared with"
 msgstr "Freigegeben für"
 
-#: intervention/forms.py:259
+#: intervention/forms.py:260
 msgid "Remove check to remove access for this user"
 msgstr "Wählen Sie die Nutzer ab, die keinen Zugriff mehr haben sollen"
 
-#: intervention/forms.py:270
+#: intervention/forms.py:271
 #: intervention/templates/intervention/detail/view.html:27
 msgid "Share"
 msgstr "Freigabe"
 
-#: intervention/forms.py:271
+#: intervention/forms.py:272
 msgid "Share settings for {}"
 msgstr "Freigabe Einstellungen für {}"
 
@@ -285,18 +286,18 @@ msgstr "Eingriffe"
 msgid "Intervention"
 msgstr "Eingriff"
 
-#: intervention/templates/intervention/detail/includes/compensations.html:13
+#: intervention/templates/intervention/detail/includes/compensations.html:14
 msgid "Add new compensation"
 msgstr "Neue Kompensation hinzufügen"
 
-#: intervention/templates/intervention/detail/includes/compensations.html:34
-#: intervention/templates/intervention/detail/includes/documents.html:32
-#: intervention/templates/intervention/detail/includes/eco-account-withdraws.html:34
-#: intervention/templates/intervention/detail/includes/payments.html:35
+#: intervention/templates/intervention/detail/includes/compensations.html:36
+#: intervention/templates/intervention/detail/includes/documents.html:34
+#: intervention/templates/intervention/detail/includes/eco-account-withdraws.html:36
+#: intervention/templates/intervention/detail/includes/payments.html:37
 msgid "Action"
 msgstr "Aktionen"
 
-#: intervention/templates/intervention/detail/includes/compensations.html:48
+#: intervention/templates/intervention/detail/includes/compensations.html:51
 msgid "Remove compensation"
 msgstr "Kompensation entfernen"
 
@@ -304,17 +305,17 @@ msgstr "Kompensation entfernen"
 msgid "Documents"
 msgstr "Dokumente"
 
-#: intervention/templates/intervention/detail/includes/documents.html:13
-#: konova/forms.py:287
+#: intervention/templates/intervention/detail/includes/documents.html:14
+#: konova/forms.py:288
 msgid "Add new document"
 msgstr "Neues Dokument hinzufügen"
 
-#: intervention/templates/intervention/detail/includes/documents.html:29
-#: konova/forms.py:274
+#: intervention/templates/intervention/detail/includes/documents.html:31
+#: konova/forms.py:275
 msgid "Comment"
 msgstr "Kommentar"
 
-#: intervention/templates/intervention/detail/includes/documents.html:46
+#: intervention/templates/intervention/detail/includes/documents.html:49
 msgid "Remove document"
 msgstr "Dokument löschen"
 
@@ -322,15 +323,15 @@ msgstr "Dokument löschen"
 msgid "Eco Account Withdraws"
 msgstr "Ökokonto Abbuchungen"
 
-#: intervention/templates/intervention/detail/includes/eco-account-withdraws.html:13
+#: intervention/templates/intervention/detail/includes/eco-account-withdraws.html:14
 msgid "Add new withdraw"
 msgstr "Neue Abbuchung hinzufügen"
 
-#: intervention/templates/intervention/detail/includes/eco-account-withdraws.html:28
+#: intervention/templates/intervention/detail/includes/eco-account-withdraws.html:30
 msgid "Account Identifier"
 msgstr "Ökokonto Kennung"
 
-#: intervention/templates/intervention/detail/includes/eco-account-withdraws.html:48
+#: intervention/templates/intervention/detail/includes/eco-account-withdraws.html:51
 msgid "Remove Withdraw"
 msgstr "Abbuchung entfernen"
 
@@ -338,20 +339,20 @@ msgstr "Abbuchung entfernen"
 msgid "Payments"
 msgstr "Ersatzzahlungen"
 
-#: intervention/templates/intervention/detail/includes/payments.html:13
+#: intervention/templates/intervention/detail/includes/payments.html:14
 msgid "Add new payment"
 msgstr "Neue Zahlung hinzufügen"
 
-#: intervention/templates/intervention/detail/includes/payments.html:26
+#: intervention/templates/intervention/detail/includes/payments.html:28
 msgctxt "money"
 msgid "Amount"
 msgstr "Betrag"
 
-#: intervention/templates/intervention/detail/includes/payments.html:32
+#: intervention/templates/intervention/detail/includes/payments.html:34
 msgid "Transfer comment"
 msgstr "Verwendungszweck"
 
-#: intervention/templates/intervention/detail/includes/payments.html:50
+#: intervention/templates/intervention/detail/includes/payments.html:53
 msgid "Remove payment"
 msgstr "Zahlung entfernen"
 
@@ -363,85 +364,85 @@ msgstr "In LANIS öffnen"
 msgid "Public report"
 msgstr "Öffentlicher Bericht"
 
-#: intervention/templates/intervention/detail/view.html:31
+#: intervention/templates/intervention/detail/view.html:32
 msgid "Run check"
 msgstr "Prüfung vornehmen"
 
-#: intervention/templates/intervention/detail/view.html:36
+#: intervention/templates/intervention/detail/view.html:39
 msgid "Record"
 msgstr "Verzeichnen"
 
-#: intervention/templates/intervention/detail/view.html:41
+#: intervention/templates/intervention/detail/view.html:46
 msgid "Edit"
 msgstr "Bearbeiten"
 
-#: intervention/templates/intervention/detail/view.html:46
+#: intervention/templates/intervention/detail/view.html:50
 #: venv/lib/python3.7/site-packages/django/forms/formsets.py:391
 msgid "Delete"
 msgstr "Löschen"
 
-#: intervention/templates/intervention/detail/view.html:64
+#: intervention/templates/intervention/detail/view.html:68
 msgid "Process type"
 msgstr "Verfahrenstyp"
 
-#: intervention/templates/intervention/detail/view.html:72
+#: intervention/templates/intervention/detail/view.html:76
 msgid "Registration office"
 msgstr "Zulassungsbehörde"
 
-#: intervention/templates/intervention/detail/view.html:76
+#: intervention/templates/intervention/detail/view.html:80
 msgid "Registration office file number"
 msgstr "Aktenzeichen Zulassungsbehörde"
 
-#: intervention/templates/intervention/detail/view.html:80
+#: intervention/templates/intervention/detail/view.html:84
 msgid "Conservation office"
 msgstr "Naturschutzbehörde"
 
-#: intervention/templates/intervention/detail/view.html:84
+#: intervention/templates/intervention/detail/view.html:88
 msgid "Conversation office file number"
 msgstr "Aktenzeichen Naturschutzbehörde"
 
-#: intervention/templates/intervention/detail/view.html:99
+#: intervention/templates/intervention/detail/view.html:103
 msgid "Checked on "
 msgstr "Geprüft am "
 
-#: intervention/templates/intervention/detail/view.html:99
-#: intervention/templates/intervention/detail/view.html:113
+#: intervention/templates/intervention/detail/view.html:103
+#: intervention/templates/intervention/detail/view.html:117
 msgid "by"
 msgstr "von"
 
-#: intervention/templates/intervention/detail/view.html:113
+#: intervention/templates/intervention/detail/view.html:117
 msgid "Recorded on "
 msgstr "Verzeichnet am"
 
-#: intervention/templates/intervention/detail/view.html:120
+#: intervention/templates/intervention/detail/view.html:124
 msgid "Registration date"
 msgstr "Datum Zulassung bzw. Satzungsbeschluss"
 
-#: intervention/templates/intervention/detail/view.html:124
+#: intervention/templates/intervention/detail/view.html:128
 msgid "Binding on"
 msgstr "Datum Bestandskraft"
 
-#: intervention/templates/intervention/detail/view.html:128
+#: intervention/templates/intervention/detail/view.html:132
 msgid "Last modified"
 msgstr "Zuletzt bearbeitet"
 
-#: intervention/templates/intervention/detail/view.html:142
+#: intervention/templates/intervention/detail/view.html:154
 msgid "No geometry added, yet."
 msgstr "Keine Geometrie vorhanden"
 
-#: intervention/views.py:63
+#: intervention/views.py:65
 msgid "Intervention {} added"
 msgstr "Eingriff {} hinzugefügt"
 
-#: intervention/views.py:66 intervention/views.py:173
+#: intervention/views.py:68 intervention/views.py:179
 msgid "Invalid input"
 msgstr "Eingabe fehlerhaft"
 
-#: intervention/views.py:95
+#: intervention/views.py:97
 msgid "Document '{}' added"
 msgstr "Dokument '{}' hinzugefügt"
 
-#: intervention/views.py:147
+#: intervention/views.py:153
 msgid ""
 "Remember: This data has not been shared with you, yet. This means you can "
 "only read but can not edit or perform any actions like running a check or "
@@ -451,10 +452,16 @@ msgstr ""
 "bedeutet, dass Sie nur lesenden Zugriff hierauf haben und weder bearbeiten, "
 "noch Prüfungen durchführen oder verzeichnen können."
 
-#: intervention/views.py:170
+#: intervention/views.py:176
 msgid "{} edited"
 msgstr "{} bearbeitet"
 
+#: intervention/views.py:205
+#, fuzzy
+#| msgid "Object removed"
+msgid "{} removed"
+msgstr "Objekt entfernt"
+
 #: intervention/views.py:232
 msgid "{} has already been shared with you"
 msgstr "{} wurde bereits für Sie freigegeben"
@@ -467,7 +474,7 @@ msgstr "{} ist nun für Sie freigegeben"
 msgid "Share link invalid"
 msgstr "Freigabelink ungültig"
 
-#: intervention/views.py:269
+#: intervention/views.py:268
 msgid "Share settings updated"
 msgstr "Freigabe Einstellungen aktualisiert"
 
@@ -507,20 +514,20 @@ msgstr "Sind Sie sicher?"
 msgid "Object removed"
 msgstr "Objekt entfernt"
 
-#: konova/forms.py:253
+#: konova/forms.py:254
 msgid "When has this file been created? Important for photos."
 msgstr "Wann wurde diese Datei erstellt oder das Foto aufgenommen?"
 
-#: konova/forms.py:263
+#: konova/forms.py:264
 #: venv/lib/python3.7/site-packages/django/db/models/fields/files.py:231
 msgid "File"
 msgstr "Datei"
 
-#: konova/forms.py:265
+#: konova/forms.py:266
 msgid "Must be smaller than 15 Mb"
 msgstr "Muss kleiner als 15 Mb sein"
 
-#: konova/forms.py:276
+#: konova/forms.py:277
 msgid "Additional comment on this file"
 msgstr "Zusätzlicher Kommentar"
 
@@ -588,7 +595,15 @@ msgstr "Abbuchen"
 msgid "There was an error on this form."
 msgstr "Es gab einen Fehler im Formular."
 
-#: konova/views.py:140
+#: konova/views.py:58
+msgid ""
+"+++ Attention: You are not part of any group. You won't be able to create, "
+"edit or do anything. Please contact an administrator. +++"
+msgstr ""
+"+++ Achtung: Ihr Account ist keiner Rechtegruppe zugewiesen. Sie können somit nichts eingeben, "
+"bearbeiten oder sonstige Aktionen ausführen. Kontaktieren Sie bitte einen Administrator. +++"
+
+#: konova/views.py:147
 msgid "Document '{}' deleted"
 msgstr "Dokument '{}' gelöscht"
 
diff --git a/user/views.py b/user/views.py
index 5260dd4b..a719c5b2 100644
--- a/user/views.py
+++ b/user/views.py
@@ -6,11 +6,13 @@ from django.shortcuts import render, redirect, get_object_or_404
 from django.utils.translation import gettext_lazy as _
 
 from konova.contexts import BaseContext
+from konova.decorators import any_group_check
 from user.forms import UserNotificationForm, UserContactForm
 from user.models import KonovaUserExtension
 
 
 @login_required
+@any_group_check
 def index_view(request: HttpRequest):
     """ Renders the user's data index view
 
@@ -29,6 +31,7 @@ def index_view(request: HttpRequest):
 
 
 @login_required
+@any_group_check
 def notifications_view(request: HttpRequest):
     """ Renders the notifications settings view