diff --git a/compensation/tables.py b/compensation/tables.py
index 401a7416..1373f2cd 100644
--- a/compensation/tables.py
+++ b/compensation/tables.py
@@ -5,17 +5,15 @@ Contact: michel.peltriaux@sgdnord.rlp.de
 Created on: 01.12.20
 
 """
-from user.models import User
+from konova.utils.message_templates import DATA_IS_UNCHECKED, DATA_CHECKED_ON_TEMPLATE, DATA_CHECKED_PREVIOUSLY_TEMPLATE
 from django.http import HttpRequest
 from django.template.loader import render_to_string
 from django.urls import reverse
 from django.utils.html import format_html
-from django.utils.timezone import localtime
 from django.utils.translation import gettext_lazy as _
 
 from compensation.filters import CompensationTableFilter, EcoAccountTableFilter
 from compensation.models import Compensation, EcoAccount
-from konova.sub_settings.django_settings import DEFAULT_DATE_TIME_FORMAT
 from konova.utils.tables import BaseTable, TableRenderMixin
 import django_tables2 as tables
 
@@ -111,16 +109,21 @@ class CompensationTable(BaseTable, TableRenderMixin):
         """
         html = ""
         checked = value is not None
-        tooltip = _("Not checked yet")
+        tooltip = DATA_IS_UNCHECKED
+        previously_checked = record.intervention.get_last_checked_action()
         if checked:
-            value = value.timestamp
-            value = localtime(value)
-            checked_on = value.strftime(DEFAULT_DATE_TIME_FORMAT)
-            tooltip = _("Checked on {} by {}").format(checked_on, record.intervention.checked.user)
+            checked_on = value.get_timestamp_str_formatted()
+            tooltip = DATA_CHECKED_ON_TEMPLATE.format(checked_on, record.intervention.checked.user)
         html += self.render_checked_star(
             tooltip=tooltip,
             icn_filled=checked,
         )
+        if previously_checked and not checked:
+            checked_on = previously_checked.get_timestamp_str_formatted()
+            tooltip = DATA_CHECKED_PREVIOUSLY_TEMPLATE.format(checked_on, previously_checked.user)
+            html += self.render_previously_checked_star(
+                tooltip=tooltip,
+            )
         return format_html(html)
 
     def render_d(self, value, record: Compensation):
@@ -159,9 +162,7 @@ class CompensationTable(BaseTable, TableRenderMixin):
         recorded = value is not None
         tooltip = _("Not recorded yet")
         if recorded:
-            value = value.timestamp
-            value = localtime(value)
-            on = value.strftime(DEFAULT_DATE_TIME_FORMAT)
+            on = value.get_timestamp_str_formatted()
             tooltip = _("Recorded on {} by {}").format(on, record.intervention.recorded.user)
         html += self.render_bookmark(
             tooltip=tooltip,
@@ -179,8 +180,6 @@ class CompensationTable(BaseTable, TableRenderMixin):
         Returns:
 
         """
-        if value is None:
-            value = User.objects.none()
         has_access = record.is_shared_with(self.user)
 
         html = self.render_icn(
@@ -318,9 +317,7 @@ class EcoAccountTable(BaseTable, TableRenderMixin):
         checked = value is not None
         tooltip = _("Not recorded yet. Can not be used for deductions, yet.")
         if checked:
-            value = value.timestamp
-            value = localtime(value)
-            on = value.strftime(DEFAULT_DATE_TIME_FORMAT)
+            on = value.get_timestamp_str_formatted()
             tooltip = _("Recorded on {} by {}").format(on, record.recorded.user)
         html += self.render_bookmark(
             tooltip=tooltip,
diff --git a/compensation/templates/compensation/detail/compensation/view.html b/compensation/templates/compensation/detail/compensation/view.html
index 026a6ff6..be8dd3b9 100644
--- a/compensation/templates/compensation/detail/compensation/view.html
+++ b/compensation/templates/compensation/detail/compensation/view.html
@@ -66,6 +66,11 @@
                                 <span>
                                     {% fa5_icon 'star' 'far' %}
                                 </span>
+                                {% if last_checked %}
+                                    <span class="rlp-gd-inv" title="{{last_checked_tooltip}}">
+                                        {% fa5_icon 'star' 'fas' %}
+                                    </span>
+                                {% endif %}
                             {% else %}
                                 <span class="check-star" title="{% trans 'Checked on '%} {{obj.intervention.checked.timestamp}} {% trans 'by' %} {{obj.intervention.checked.user}}">
                                     {% fa5_icon 'star' %}
diff --git a/compensation/views/compensation.py b/compensation/views/compensation.py
index c3d3e2b5..31087ed7 100644
--- a/compensation/views/compensation.py
+++ b/compensation/views/compensation.py
@@ -23,7 +23,7 @@ from konova.utils.message_templates import FORM_INVALID, IDENTIFIER_REPLACED, DA
     CHECKED_RECORDED_RESET, COMPENSATION_ADDED_TEMPLATE, COMPENSATION_REMOVED_TEMPLATE, DOCUMENT_ADDED, \
     COMPENSATION_STATE_REMOVED, COMPENSATION_STATE_ADDED, COMPENSATION_ACTION_REMOVED, COMPENSATION_ACTION_ADDED, \
     DEADLINE_ADDED, DEADLINE_REMOVED, DOCUMENT_EDITED, COMPENSATION_STATE_EDITED, COMPENSATION_ACTION_EDITED, \
-    DEADLINE_EDITED, RECORDED_BLOCKS_EDIT, PARAMS_INVALID
+    DEADLINE_EDITED, RECORDED_BLOCKS_EDIT, PARAMS_INVALID, DATA_CHECKED_PREVIOUSLY_TEMPLATE
 from konova.utils.user_checks import in_group
 
 
@@ -217,8 +217,15 @@ def detail_view(request: HttpRequest, id: str):
 
     request = comp.set_status_messages(request)
 
+    last_checked = comp.intervention.get_last_checked_action()
+    last_checked_tooltip = ""
+    if last_checked:
+        last_checked_tooltip = DATA_CHECKED_PREVIOUSLY_TEMPLATE.format(last_checked.get_timestamp_str_formatted(), last_checked.user)
+
     context = {
         "obj": comp,
+        "last_checked": last_checked,
+        "last_checked_tooltip": last_checked_tooltip,
         "geom_form": geom_form,
         "parcels": parcels,
         "has_access": is_data_shared,
diff --git a/ema/tables.py b/ema/tables.py
index 38d8a8c0..d26a31dc 100644
--- a/ema/tables.py
+++ b/ema/tables.py
@@ -115,7 +115,6 @@ class EmaTable(BaseTable, TableRenderMixin):
         )
         return html
 
-
     def render_r(self, value, record: Ema):
         """ Renders the registered column for a EMA
 
@@ -130,9 +129,7 @@ class EmaTable(BaseTable, TableRenderMixin):
         recorded = value is not None
         tooltip = _("Not recorded yet")
         if recorded:
-            value = value.timestamp
-            value = localtime(value)
-            on = value.strftime(DEFAULT_DATE_TIME_FORMAT)
+            on = value.get_timestamp_str_formatted()
             tooltip = _("Recorded on {} by {}").format(on, record.recorded.user)
         html += self.render_bookmark(
             tooltip=tooltip,
diff --git a/intervention/tables.py b/intervention/tables.py
index 8f312099..cff9391c 100644
--- a/intervention/tables.py
+++ b/intervention/tables.py
@@ -9,12 +9,11 @@ from django.http import HttpRequest
 from django.template.loader import render_to_string
 from django.urls import reverse
 from django.utils.html import format_html
-from django.utils.timezone import localtime
 from django.utils.translation import gettext_lazy as _
 
 from intervention.filters import InterventionTableFilter
 from intervention.models import Intervention
-from konova.sub_settings.django_settings import DEFAULT_DATE_TIME_FORMAT, DEFAULT_DATE_FORMAT
+from konova.utils.message_templates import DATA_CHECKED_ON_TEMPLATE, DATA_IS_UNCHECKED, DATA_CHECKED_PREVIOUSLY_TEMPLATE
 from konova.utils.tables import BaseTable, TableRenderMixin
 import django_tables2 as tables
 
@@ -108,16 +107,21 @@ class InterventionTable(BaseTable, TableRenderMixin):
         """
         html = ""
         checked = value is not None
-        tooltip = _("Not checked yet")
+        previously_checked = record.get_last_checked_action()
+        tooltip = DATA_IS_UNCHECKED
         if checked:
-            value = value.timestamp
-            value = localtime(value)
-            checked_on = value.strftime(DEFAULT_DATE_TIME_FORMAT)
-            tooltip = _("Checked on {} by {}").format(checked_on, record.checked.user)
+            checked_on = value.get_timestamp_str_formatted()
+            tooltip = DATA_CHECKED_ON_TEMPLATE.format(checked_on, record.checked.user)
         html += self.render_checked_star(
             tooltip=tooltip,
             icn_filled=checked,
         )
+        if previously_checked and not checked:
+            checked_on = previously_checked.get_timestamp_str_formatted()
+            tooltip = DATA_CHECKED_PREVIOUSLY_TEMPLATE.format(checked_on, previously_checked.user)
+            html += self.render_previously_checked_star(
+                tooltip=tooltip,
+            )
         return format_html(html)
 
     def render_d(self, value, record: Intervention):
@@ -156,9 +160,7 @@ class InterventionTable(BaseTable, TableRenderMixin):
         checked = value is not None
         tooltip = _("Not recorded yet")
         if checked:
-            value = value.timestamp
-            value = localtime(value)
-            on = value.strftime(DEFAULT_DATE_TIME_FORMAT)
+            on = value.get_timestamp_str_formatted()
             tooltip = _("Recorded on {} by {}").format(on, record.recorded.user)
         html += self.render_bookmark(
             tooltip=tooltip,
diff --git a/intervention/templates/intervention/detail/view.html b/intervention/templates/intervention/detail/view.html
index 55c9db99..55d57f68 100644
--- a/intervention/templates/intervention/detail/view.html
+++ b/intervention/templates/intervention/detail/view.html
@@ -70,6 +70,11 @@
                                 <span>
                                     {% fa5_icon 'star' 'far' %}
                                 </span>
+                                {% if last_checked %}
+                                    <span class="rlp-gd-inv" title="{{last_checked_tooltip}}">
+                                        {% fa5_icon 'star' 'fas' %}
+                                    </span>
+                                {% endif %}
                             {% else %}
                                 <span class="check-star" title="{% trans 'Checked on '%} {{obj.checked.timestamp}} {% trans 'by' %} {{obj.checked.user}}">
                                     {% fa5_icon 'star' %}
diff --git a/intervention/views.py b/intervention/views.py
index 15388dbf..36577202 100644
--- a/intervention/views.py
+++ b/intervention/views.py
@@ -19,7 +19,7 @@ from konova.utils.generators import generate_qr_code
 from konova.utils.message_templates import INTERVENTION_INVALID, FORM_INVALID, IDENTIFIER_REPLACED, \
     CHECKED_RECORDED_RESET, DEDUCTION_REMOVED, DEDUCTION_ADDED, REVOCATION_ADDED, REVOCATION_REMOVED, \
     COMPENSATION_REMOVED_TEMPLATE, DOCUMENT_ADDED, DEDUCTION_EDITED, REVOCATION_EDITED, DOCUMENT_EDITED, \
-    RECORDED_BLOCKS_EDIT
+    RECORDED_BLOCKS_EDIT, DATA_CHECKED_PREVIOUSLY_TEMPLATE
 from konova.utils.user_checks import in_group
 
 
@@ -265,9 +265,15 @@ def detail_view(request: HttpRequest, id: str):
     geom_form = SimpleGeomForm(
         instance=intervention,
     )
+    last_checked = intervention.get_last_checked_action()
+    last_checked_tooltip = ""
+    if last_checked:
+        last_checked_tooltip = DATA_CHECKED_PREVIOUSLY_TEMPLATE.format(last_checked.get_timestamp_str_formatted(), last_checked.user)
 
     context = {
         "obj": intervention,
+        "last_checked": last_checked,
+        "last_checked_tooltip": last_checked_tooltip,
         "compensations": compensations,
         "has_access": is_data_shared,
         "geom_form": geom_form,
diff --git a/konova/models/object.py b/konova/models/object.py
index 780a0c2f..325762f4 100644
--- a/konova/models/object.py
+++ b/konova/models/object.py
@@ -408,6 +408,20 @@ class CheckableObjectMixin(models.Model):
         self.log.add(action)
         return action
 
+    def get_last_checked_action(self):
+        """ Getter for the most recent checked action on the log
+
+        Returns:
+            previously_checked (UserActionLogEntry): The most recent checked action
+        """
+        from user.models import UserAction
+        previously_checked = self.log.filter(
+            action=UserAction.CHECKED
+        ).order_by(
+            "-timestamp"
+        ).first()
+        return previously_checked
+
 
 class ShareableObjectMixin(models.Model):
     # Users having access on this object
diff --git a/konova/sub_settings/django_settings.py b/konova/sub_settings/django_settings.py
index e5de97a0..746df289 100644
--- a/konova/sub_settings/django_settings.py
+++ b/konova/sub_settings/django_settings.py
@@ -46,8 +46,8 @@ ALLOWED_HOSTS = [
 LOGIN_URL = "/login/"
 
 # Session settings
-#SESSION_COOKIE_AGE = 30 * 60  # 30 minutes
-#SESSION_SAVE_EVERY_REQUEST = True
+SESSION_COOKIE_AGE = 60 * 60  # 60 minutes
+SESSION_SAVE_EVERY_REQUEST = True
 
 # Application definition
 
diff --git a/konova/templates/konova/includes/comment_card.html b/konova/templates/konova/includes/comment_card.html
index a84f378e..d9ea59bc 100644
--- a/konova/templates/konova/includes/comment_card.html
+++ b/konova/templates/konova/includes/comment_card.html
@@ -6,7 +6,7 @@
 
 
 {% if obj.comment %}
-<div class="w-100">
+<div class="col-sm-12">
     <div class="card mt-3">
         <div class="card-header rlp-gd">
             <div class="row">
diff --git a/konova/utils/message_templates.py b/konova/utils/message_templates.py
index e062005a..f6e3ca18 100644
--- a/konova/utils/message_templates.py
+++ b/konova/utils/message_templates.py
@@ -81,3 +81,8 @@ GEOMETRY_CONFLICT_WITH_TEMPLATE = _("Geometry conflict detected with {}")
 
 # INTERVENTION
 INTERVENTION_HAS_REVOCATIONS_TEMPLATE = _("This intervention has {} revocations")
+
+# CHECKED
+DATA_CHECKED_ON_TEMPLATE = _("Checked on {} by {}")
+DATA_CHECKED_PREVIOUSLY_TEMPLATE = _("Data has changed since last check on {} by {}")
+DATA_IS_UNCHECKED = _("Current data not checked yet")
diff --git a/konova/utils/tables.py b/konova/utils/tables.py
index d3a0406b..d7468725 100644
--- a/konova/utils/tables.py
+++ b/konova/utils/tables.py
@@ -112,6 +112,17 @@ class BaseTable(tables.tables.Table):
             icon
         )
 
+    def render_previously_checked_star(self, tooltip: str = None):
+        """
+        Returns a star icon for a check action in the past
+        """
+        icon = "fas fa-star rlp-gd-inv"
+        return format_html(
+            "<em title='{}' class='{}'></em>",
+            tooltip,
+            icon
+        )
+
     def render_bookmark(self, tooltip: str = None, icn_filled: bool = False):
         """
         Returns a bookmark icon
diff --git a/locale/de/LC_MESSAGES/django.mo b/locale/de/LC_MESSAGES/django.mo
index fd65919a..5e1ebe07 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 cc23fe5d..e735ce6c 100644
--- a/locale/de/LC_MESSAGES/django.po
+++ b/locale/de/LC_MESSAGES/django.po
@@ -18,15 +18,15 @@
 #: konova/filters/mixins.py:277 konova/filters/mixins.py:323
 #: konova/filters/mixins.py:361 konova/filters/mixins.py:362
 #: konova/filters/mixins.py:393 konova/filters/mixins.py:394
-#: konova/forms.py:179 konova/forms.py:281 konova/forms.py:382
-#: konova/forms.py:426 konova/forms.py:436 konova/forms.py:449
-#: konova/forms.py:461 konova/forms.py:479 user/forms.py:42
+#: konova/forms.py:179 konova/forms.py:281 konova/forms.py:395
+#: konova/forms.py:439 konova/forms.py:449 konova/forms.py:462
+#: konova/forms.py:474 konova/forms.py:492 user/forms.py:42
 #, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2022-05-11 13:41+0200\n"
+"POT-Creation-Date: 2022-05-30 09:16+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"
@@ -138,9 +138,9 @@ msgstr "Zuständigkeitsbereich"
 #: analysis/templates/analysis/reports/includes/intervention/amount.html:17
 #: analysis/templates/analysis/reports/includes/intervention/compensated_by.html:8
 #: analysis/templates/analysis/reports/includes/intervention/laws.html:17
-#: compensation/tables.py:40
+#: compensation/tables.py:41
 #: compensation/templates/compensation/detail/compensation/view.html:64
-#: intervention/tables.py:39
+#: intervention/tables.py:40
 #: intervention/templates/intervention/detail/view.html:68
 #: user/models/user_action.py:20
 msgid "Checked"
@@ -154,12 +154,12 @@ msgstr "Geprüft"
 #: analysis/templates/analysis/reports/includes/intervention/compensated_by.html:9
 #: analysis/templates/analysis/reports/includes/intervention/laws.html:20
 #: analysis/templates/analysis/reports/includes/old_data/amount.html:18
-#: compensation/tables.py:46 compensation/tables.py:220
+#: compensation/tables.py:47 compensation/tables.py:230
 #: compensation/templates/compensation/detail/compensation/view.html:78
 #: compensation/templates/compensation/detail/eco_account/includes/deductions.html:31
 #: compensation/templates/compensation/detail/eco_account/view.html:45
 #: ema/tables.py:44 ema/templates/ema/detail/view.html:35
-#: intervention/tables.py:45
+#: intervention/tables.py:46
 #: intervention/templates/intervention/detail/view.html:82
 #: user/models/user_action.py:21
 msgid "Recorded"
@@ -198,7 +198,7 @@ msgid "Other registration office"
 msgstr "Andere Zulassungsbehörden"
 
 #: analysis/templates/analysis/reports/includes/compensation/card_compensation.html:11
-#: compensation/tables.py:67
+#: compensation/tables.py:68
 #: intervention/templates/intervention/detail/includes/compensations.html:8
 #: intervention/templates/intervention/report/report.html:45
 msgid "Compensations"
@@ -227,7 +227,7 @@ msgid "Surface"
 msgstr "Fläche"
 
 #: analysis/templates/analysis/reports/includes/intervention/card_intervention.html:10
-#: intervention/tables.py:66
+#: intervention/tables.py:67
 msgid "Interventions"
 msgstr "Eingriffe"
 
@@ -285,8 +285,8 @@ msgid "Type"
 msgstr "Typ"
 
 #: analysis/templates/analysis/reports/includes/old_data/amount.html:24
-#: compensation/tables.py:89 intervention/forms/modalForms.py:375
-#: intervention/forms/modalForms.py:382 intervention/tables.py:88
+#: compensation/tables.py:90 intervention/forms/modalForms.py:375
+#: intervention/forms/modalForms.py:382 intervention/tables.py:89
 #: intervention/templates/intervention/detail/view.html:19
 #: konova/templates/konova/includes/quickstart/interventions.html:4
 #: templates/navbars/navbar.html:22
@@ -294,7 +294,7 @@ msgid "Intervention"
 msgstr "Eingriff"
 
 #: analysis/templates/analysis/reports/includes/old_data/amount.html:34
-#: compensation/tables.py:264
+#: compensation/tables.py:274
 #: compensation/templates/compensation/detail/eco_account/view.html:20
 #: intervention/forms/modalForms.py:348 intervention/forms/modalForms.py:355
 #: konova/templates/konova/includes/quickstart/ecoaccounts.html:4
@@ -314,9 +314,9 @@ msgstr "Vor"
 msgid "Show only unrecorded"
 msgstr "Nur unverzeichnete anzeigen"
 
-#: compensation/forms/forms.py:32 compensation/tables.py:25
-#: compensation/tables.py:195 ema/tables.py:29 intervention/forms/forms.py:28
-#: intervention/tables.py:24
+#: compensation/forms/forms.py:32 compensation/tables.py:26
+#: compensation/tables.py:205 ema/tables.py:29 intervention/forms/forms.py:28
+#: intervention/tables.py:25
 #: intervention/templates/intervention/detail/includes/compensations.html:30
 msgid "Identifier"
 msgstr "Kennung"
@@ -326,8 +326,8 @@ msgstr "Kennung"
 msgid "Generated automatically"
 msgstr "Automatisch generiert"
 
-#: compensation/forms/forms.py:44 compensation/tables.py:30
-#: compensation/tables.py:200
+#: compensation/forms/forms.py:44 compensation/tables.py:31
+#: compensation/tables.py:210
 #: compensation/templates/compensation/detail/compensation/includes/documents.html:28
 #: compensation/templates/compensation/detail/compensation/view.html:32
 #: compensation/templates/compensation/detail/eco_account/includes/documents.html:28
@@ -337,12 +337,12 @@ msgstr "Automatisch generiert"
 #: ema/tables.py:34 ema/templates/ema/detail/includes/documents.html:28
 #: ema/templates/ema/detail/view.html:31
 #: ema/templates/ema/report/report.html:12 intervention/forms/forms.py:40
-#: intervention/tables.py:29
+#: intervention/tables.py:30
 #: intervention/templates/intervention/detail/includes/compensations.html:33
 #: intervention/templates/intervention/detail/includes/documents.html:28
 #: intervention/templates/intervention/detail/view.html:31
 #: intervention/templates/intervention/report/report.html:12
-#: konova/forms.py:425
+#: konova/forms.py:438
 msgid "Title"
 msgstr "Bezeichnung"
 
@@ -369,7 +369,7 @@ msgstr "Kompensation XY; Flur ABC"
 #: intervention/templates/intervention/detail/includes/documents.html:34
 #: intervention/templates/intervention/detail/includes/payments.html:34
 #: intervention/templates/intervention/detail/includes/revocation.html:38
-#: konova/forms.py:460 konova/templates/konova/includes/comment_card.html:16
+#: konova/forms.py:473 konova/templates/konova/includes/comment_card.html:16
 msgid "Comment"
 msgstr "Kommentar"
 
@@ -493,7 +493,7 @@ msgid "Due on which date"
 msgstr "Zahlung wird an diesem Datum erwartet"
 
 #: compensation/forms/modalForms.py:65 compensation/forms/modalForms.py:363
-#: intervention/forms/modalForms.py:177 konova/forms.py:462
+#: intervention/forms/modalForms.py:177 konova/forms.py:475
 msgid "Additional comment, maximum {} letters"
 msgstr "Zusätzlicher Kommentar, maximal {} Zeichen"
 
@@ -675,70 +675,62 @@ msgstr ""
 "Es wurde bereits mehr Fläche abgebucht, als Sie nun als abbuchbar einstellen "
 "wollen. Kontaktieren Sie die für die Abbuchungen verantwortlichen Nutzer!"
 
-#: compensation/tables.py:35 compensation/tables.py:205 ema/tables.py:39
-#: intervention/tables.py:34 konova/filters/mixins.py:98
+#: compensation/tables.py:36 compensation/tables.py:215 ema/tables.py:39
+#: intervention/tables.py:35 konova/filters/mixins.py:98
 msgid "Parcel gmrkng"
 msgstr "Gemarkung"
 
-#: compensation/tables.py:52 compensation/tables.py:226 ema/tables.py:50
-#: intervention/tables.py:51
+#: compensation/tables.py:53 compensation/tables.py:236 ema/tables.py:50
+#: intervention/tables.py:52
 msgid "Editable"
 msgstr "Freigegeben"
 
-#: compensation/tables.py:58 compensation/tables.py:232 ema/tables.py:56
-#: intervention/tables.py:57
+#: compensation/tables.py:59 compensation/tables.py:242 ema/tables.py:56
+#: intervention/tables.py:58
 msgid "Last edit"
 msgstr "Zuletzt bearbeitet"
 
-#: compensation/tables.py:89 compensation/tables.py:264 ema/tables.py:89
-#: intervention/tables.py:88
+#: compensation/tables.py:90 compensation/tables.py:274 ema/tables.py:89
+#: intervention/tables.py:89
 msgid "Open {}"
 msgstr "Öffne {}"
 
-#: compensation/tables.py:114 intervention/tables.py:111
-msgid "Not checked yet"
-msgstr "Noch nicht geprüft"
-
-#: compensation/tables.py:119 intervention/tables.py:116
-msgid "Checked on {} by {}"
-msgstr "Am {} von {} geprüft worden"
-
-#: compensation/tables.py:160
+#: compensation/tables.py:170
 #: compensation/templates/compensation/detail/compensation/view.html:81
 #: compensation/templates/compensation/detail/eco_account/includes/deductions.html:58
 #: compensation/templates/compensation/detail/eco_account/view.html:48
 #: ema/tables.py:131 ema/templates/ema/detail/view.html:38
-#: intervention/tables.py:157
+#: intervention/tables.py:167
 #: intervention/templates/intervention/detail/view.html:85
 msgid "Not recorded yet"
 msgstr "Noch nicht verzeichnet"
 
-#: compensation/tables.py:165 compensation/tables.py:324 ema/tables.py:136
-#: intervention/tables.py:162
+#: compensation/tables.py:175 compensation/tables.py:334 ema/tables.py:136
+#: intervention/tables.py:172
 msgid "Recorded on {} by {}"
 msgstr "Am {} von {} verzeichnet worden"
 
-#: compensation/tables.py:187 compensation/tables.py:346 ema/tables.py:157
-#: intervention/tables.py:183
+#: compensation/tables.py:197 compensation/tables.py:356 ema/tables.py:157
+#: intervention/tables.py:193
 msgid "Full access granted"
 msgstr "Für Sie freigegeben - Datensatz kann bearbeitet werden"
 
-#: compensation/tables.py:187 compensation/tables.py:346 ema/tables.py:157
-#: intervention/tables.py:183
+#: compensation/tables.py:197 compensation/tables.py:356 ema/tables.py:157
+#: intervention/tables.py:193
 msgid "Access not granted"
 msgstr "Nicht freigegeben - Datensatz nur lesbar"
 
-#: compensation/tables.py:210
+#: compensation/tables.py:220
 #: compensation/templates/compensation/detail/eco_account/view.html:36
 #: konova/templates/konova/widgets/progressbar.html:3
 msgid "Available"
 msgstr "Verfügbar"
 
-#: compensation/tables.py:241
+#: compensation/tables.py:251
 msgid "Eco Accounts"
 msgstr "Ökokonten"
 
-#: compensation/tables.py:319
+#: compensation/tables.py:329
 msgid "Not recorded yet. Can not be used for deductions, yet."
 msgstr ""
 "Noch nicht verzeichnet. Kann noch nicht für Abbuchungen genutzt werden."
@@ -871,7 +863,7 @@ msgstr "Dokumente"
 #: compensation/templates/compensation/detail/eco_account/includes/documents.html:14
 #: ema/templates/ema/detail/includes/documents.html:14
 #: intervention/templates/intervention/detail/includes/documents.html:14
-#: konova/forms.py:478
+#: konova/forms.py:491
 msgid "Add new document"
 msgstr "Neues Dokument hinzufügen"
 
@@ -879,7 +871,7 @@ msgstr "Neues Dokument hinzufügen"
 #: compensation/templates/compensation/detail/eco_account/includes/documents.html:31
 #: ema/templates/ema/detail/includes/documents.html:31
 #: intervention/templates/intervention/detail/includes/documents.html:31
-#: konova/forms.py:435
+#: konova/forms.py:448
 msgid "Created on"
 msgstr "Erstellt"
 
@@ -887,7 +879,7 @@ msgstr "Erstellt"
 #: compensation/templates/compensation/detail/eco_account/includes/documents.html:61
 #: ema/templates/ema/detail/includes/documents.html:61
 #: intervention/templates/intervention/detail/includes/documents.html:65
-#: konova/forms.py:540
+#: konova/forms.py:553
 msgid "Edit document"
 msgstr "Dokument bearbeiten"
 
@@ -1150,17 +1142,17 @@ msgid "Compensation {} edited"
 msgstr "Kompensation {} bearbeitet"
 
 #: compensation/views/compensation.py:182 compensation/views/eco_account.py:173
-#: ema/views.py:240 intervention/views.py:334
+#: ema/views.py:240 intervention/views.py:332
 msgid "Edit {}"
 msgstr "Bearbeite {}"
 
 #: compensation/views/compensation.py:261 compensation/views/eco_account.py:359
-#: ema/views.py:194 intervention/views.py:538
+#: ema/views.py:194 intervention/views.py:536
 msgid "Log"
 msgstr "Log"
 
 #: compensation/views/compensation.py:605 compensation/views/eco_account.py:727
-#: ema/views.py:558 intervention/views.py:684
+#: ema/views.py:558 intervention/views.py:682
 msgid "Report {}"
 msgstr "Bericht {}"
 
@@ -1181,32 +1173,32 @@ msgid "Eco-account removed"
 msgstr "Ökokonto entfernt"
 
 #: compensation/views/eco_account.py:380 ema/views.py:282
-#: intervention/views.py:637
+#: intervention/views.py:635
 msgid "{} unrecorded"
 msgstr "{} entzeichnet"
 
 #: compensation/views/eco_account.py:380 ema/views.py:282
-#: intervention/views.py:637
+#: intervention/views.py:635
 msgid "{} recorded"
 msgstr "{} verzeichnet"
 
 #: compensation/views/eco_account.py:804 ema/views.py:628
-#: intervention/views.py:435
+#: intervention/views.py:433
 msgid "{} has already been shared with you"
 msgstr "{} wurde bereits für Sie freigegeben"
 
 #: compensation/views/eco_account.py:809 ema/views.py:633
-#: intervention/views.py:440
+#: intervention/views.py:438
 msgid "{} has been shared with you"
 msgstr "{} ist nun für Sie freigegeben"
 
 #: compensation/views/eco_account.py:816 ema/views.py:640
-#: intervention/views.py:447
+#: intervention/views.py:445
 msgid "Share link invalid"
 msgstr "Freigabelink ungültig"
 
 #: compensation/views/eco_account.py:839 ema/views.py:663
-#: intervention/views.py:470
+#: intervention/views.py:468
 msgid "Share settings updated"
 msgstr "Freigabe Einstellungen aktualisiert"
 
@@ -1312,7 +1304,7 @@ msgstr "Datum Zulassung bzw. Satzungsbeschluss"
 msgid "Binding on"
 msgstr "Datum Bestandskraft bzw. Rechtskraft"
 
-#: intervention/forms/forms.py:211 intervention/views.py:97
+#: intervention/forms/forms.py:211 intervention/views.py:95
 msgid "New intervention"
 msgstr "Neuer Eingriff"
 
@@ -1392,7 +1384,7 @@ msgstr "Kompensationen und Zahlungen geprüft"
 msgid "Run check"
 msgstr "Prüfung vornehmen"
 
-#: intervention/forms/modalForms.py:264 konova/forms.py:581
+#: intervention/forms/modalForms.py:264 konova/forms.py:594
 msgid ""
 "I, {} {}, confirm that all necessary control steps have been performed by "
 "myself."
@@ -1532,27 +1524,27 @@ msgstr ""
 "Kein Ausgleich jeglicher Art gefunden (Kompensation, Ersatzzahlung, "
 "Abbuchung)"
 
-#: intervention/views.py:54
+#: intervention/views.py:52
 msgid "Interventions - Overview"
 msgstr "Eingriffe - Übersicht"
 
-#: intervention/views.py:87
+#: intervention/views.py:85
 msgid "Intervention {} added"
 msgstr "Eingriff {} hinzugefügt"
 
-#: intervention/views.py:322
+#: intervention/views.py:320
 msgid "Intervention {} edited"
 msgstr "Eingriff {} bearbeitet"
 
-#: intervention/views.py:358
+#: intervention/views.py:356
 msgid "{} removed"
 msgstr "{} entfernt"
 
-#: intervention/views.py:491
+#: intervention/views.py:489
 msgid "Check performed"
 msgstr "Prüfung durchgeführt"
 
-#: intervention/views.py:642
+#: intervention/views.py:640
 msgid "There are errors on this intervention:"
 msgstr "Es liegen Fehler in diesem Eingriff vor:"
 
@@ -1645,11 +1637,11 @@ msgstr "Speichern"
 msgid "Not editable"
 msgstr "Nicht editierbar"
 
-#: konova/forms.py:178 konova/forms.py:381
+#: konova/forms.py:178 konova/forms.py:394
 msgid "Confirm"
 msgstr "Bestätige"
 
-#: konova/forms.py:190 konova/forms.py:390
+#: konova/forms.py:190 konova/forms.py:403
 msgid "Remove"
 msgstr "Löschen"
 
@@ -1662,48 +1654,49 @@ msgstr "Sie sind dabei {} {} zu löschen"
 msgid "Geometry"
 msgstr "Geometrie"
 
-#: konova/forms.py:325
+#: konova/forms.py:331
 msgid "Only surfaces allowed. Points or lines must be buffered."
-msgstr "Nur Flächen erlaubt. Punkte oder Linien müssen zu Flächen gepuffert werden."
+msgstr ""
+"Nur Flächen erlaubt. Punkte oder Linien müssen zu Flächen gepuffert werden."
 
-#: konova/forms.py:391
+#: konova/forms.py:404
 msgid "Are you sure?"
 msgstr "Sind Sie sicher?"
 
-#: konova/forms.py:437
+#: konova/forms.py:450
 msgid "When has this file been created? Important for photos."
 msgstr "Wann wurde diese Datei erstellt oder das Foto aufgenommen?"
 
-#: konova/forms.py:448
+#: konova/forms.py:461
 #: venv/lib/python3.7/site-packages/django/db/models/fields/files.py:231
 msgid "File"
 msgstr "Datei"
 
-#: konova/forms.py:450
+#: konova/forms.py:463
 msgid "Allowed formats: pdf, jpg, png. Max size 15 MB."
 msgstr "Formate: pdf, jpg, png. Maximal 15 MB."
 
-#: konova/forms.py:515
+#: konova/forms.py:528
 msgid "Added document"
 msgstr "Dokument hinzugefügt"
 
-#: konova/forms.py:572
+#: konova/forms.py:585
 msgid "Confirm record"
 msgstr "Verzeichnen bestätigen"
 
-#: konova/forms.py:580
+#: konova/forms.py:593
 msgid "Record data"
 msgstr "Daten verzeichnen"
 
-#: konova/forms.py:587
+#: konova/forms.py:600
 msgid "Confirm unrecord"
 msgstr "Entzeichnen bestätigen"
 
-#: konova/forms.py:588
+#: konova/forms.py:601
 msgid "Unrecord data"
 msgstr "Daten entzeichnen"
 
-#: konova/forms.py:589
+#: konova/forms.py:602
 msgid "I, {} {}, confirm that this data must be unrecorded."
 msgstr ""
 "Ich, {} {}, bestätige, dass diese Daten wieder entzeichnet werden müssen."
@@ -2059,6 +2052,18 @@ msgstr "Geometriekonflikt mit folgenden Einträgen erkannt: {}"
 msgid "This intervention has {} revocations"
 msgstr "Dem Eingriff liegen {} Widersprüche vor"
 
+#: konova/utils/message_templates.py:86
+msgid "Checked on {} by {}"
+msgstr "Am {} von {} geprüft worden"
+
+#: konova/utils/message_templates.py:87
+msgid "Data has changed since last check on {} by {}"
+msgstr "Daten wurden nach der letzten Prüfung geändert. Letzte Prüfung am {} durch {}"
+
+#: konova/utils/message_templates.py:88
+msgid "Current data not checked yet"
+msgstr "Momentane Daten noch nicht geprüft"
+
 #: konova/utils/messenger.py:70
 msgid "{} checked"
 msgstr "{} geprüft"
@@ -2489,8 +2494,9 @@ msgid ""
 msgstr ""
 "\n"
 "            Diese Daten sind noch nicht veröffentlicht und/oder haben das "
-"Bestands-/Rechtskraftdatum noch nicht erreicht. Sie können daher aktuell nicht "
-"eingesehen werden. Schauen Sie zu einem späteren Zeitpunkt wieder vorbei. \n"
+"Bestands-/Rechtskraftdatum noch nicht erreicht. Sie können daher aktuell "
+"nicht eingesehen werden. Schauen Sie zu einem späteren Zeitpunkt wieder "
+"vorbei. \n"
 "            "
 
 #: templates/table/gmrkng_col.html:6
diff --git a/user/models/user_action.py b/user/models/user_action.py
index d797bb2c..198ff2fd 100644
--- a/user/models/user_action.py
+++ b/user/models/user_action.py
@@ -8,6 +8,7 @@ Created on: 15.11.21
 import uuid
 
 from django.db import models
+from django.utils.timezone import localtime
 from django.utils.translation import gettext_lazy as _
 
 from konova.sub_settings.django_settings import DEFAULT_DATE_TIME_FORMAT
@@ -122,3 +123,13 @@ class UserActionLogEntry(models.Model):
             comment=comment,
         )
         return action
+
+    def get_timestamp_str_formatted(self):
+        """ Getter for formatted timestamp string of the entry
+
+        Returns:
+            val (str): The formatted timestamp as string
+        """
+        val = self.timestamp
+        val = localtime(val)
+        return val.strftime(DEFAULT_DATE_TIME_FORMAT)