diff --git a/src/components/user/Jobs.vue b/src/components/user/Jobs.vue
index 642b1d4..a50bef1 100644
--- a/src/components/user/Jobs.vue
+++ b/src/components/user/Jobs.vue
@@ -21,7 +21,7 @@
       </v-toolbar-items>
       <v-spacer />
     </v-toolbar>
-    <v-card v-for="week in month" :key="month.indexOf(week)">
+    <v-card v-for="week in month" :key="month.indexOf(week)" flat tile>
       <v-card-title class="subtitle-1 font-weight-bold">
         Woche vom {{ week.startDate.getDate() }}.{{
           week.startDate.getMonth() + 1
diff --git a/src/components/user/Jobs/Day.vue b/src/components/user/Jobs/Day.vue
index d2db7df..29b96f2 100644
--- a/src/components/user/Jobs/Day.vue
+++ b/src/components/user/Jobs/Day.vue
@@ -23,7 +23,14 @@
           </div>
         </v-expand-transition>
       </v-card-text>
-      <v-card-actions>
+      <v-card-actions class="text--secondary">
+        <div v-if="day.locked">
+          Du kannst dich nicht zum Bardienst eintragen, da der Tag gesperrt ist.
+        </div>
+        <div v-else-if="day.worker.length >= 2">
+          Du kannst dich nicht Bardienst eintragen, da mehr als 2 Personen schon eingetragen sind.
+        </div>
+        <div v-else>Hier kannst du dich zum Bardienst eintragen.</div>
         <v-spacer />
         <v-btn
           v-if="!day.locked && !day.loading && day.worker.length < 2"
diff --git a/src/components/vorstand/ServiceManagement.vue b/src/components/vorstand/ServiceManagement.vue
index 9f51b8c..d951ba3 100644
--- a/src/components/vorstand/ServiceManagement.vue
+++ b/src/components/vorstand/ServiceManagement.vue
@@ -21,8 +21,12 @@
           </v-btn>
         </v-toolbar-items>
         <v-spacer />
+        <v-toolbar-items>
+          <v-btn text @click="lockDays(true)">Monat sperren</v-btn>
+          <v-btn text @click="lockDays(false)">Monat freigeben</v-btn>
+        </v-toolbar-items>
       </v-toolbar>
-      <v-card v-for="week in month" :key="month.indexOf(week)">
+      <v-card v-for="week in month" :key="month.indexOf(week)" tile flat>
         <v-card-title class="subtitle-1 font-weight-bold">
           Woche vom {{ week.startDate.getDate() }}.{{
             week.startDate.getMonth() + 1
@@ -81,7 +85,8 @@ export default {
   methods: {
     ...mapActions({
       createMonth: 'sm/createMonth',
-      getAllUsers: 'sm/getAllUsers'
+      getAllUsers: 'sm/getAllUsers',
+      lockDay: 'sm/lockDay'
     }),
     changeMonth(value) {
       if (value === -1) {
@@ -90,6 +95,14 @@ export default {
         this.date = new Date(this.date.getFullYear(), this.date.getMonth() + 1)
       }
       this.createMonth(this.date)
+    },
+    lockDays(value) {
+      for (var week in this.month) {
+        for (var dayint in this.month[week].days) {
+          var day = this.month[week].days[dayint]
+          this.lockDay({year: day.date.getFullYear(), month: day.date.getMonth() + 1, day: day.date.getDate(), locked: value})
+        }
+      }
     }
   },
   computed: {
diff --git a/src/components/vorstand/ServiceManagementComponents/Day.vue b/src/components/vorstand/ServiceManagementComponents/Day.vue
index 264cfaa..5d9440c 100644
--- a/src/components/vorstand/ServiceManagementComponents/Day.vue
+++ b/src/components/vorstand/ServiceManagementComponents/Day.vue
@@ -24,14 +24,13 @@
               label="Dienste"
               filled
               color="green"
-              @input="searchInput=null"
+              @input="searchInput = null"
               :search-input.sync="searchInput"
-              @blur="focused=false"
-              @focus="focused=true"
-
+              @blur="focused = false"
+              @focus="focused = true"
             >
               <template v-slot:prepend-inner>
-                <v-icon>{{account_add}}</v-icon>
+                <v-icon>{{ account_add }}</v-icon>
               </template>
               <template v-slot:selection="data">
                 <v-chip
@@ -55,13 +54,18 @@
           </div>
         </v-expand-transition>
       </v-card-text>
+      <v-card-actions v-if="!day.loading">
+        <v-chip class="text-uppercase" :color="lockedColor">{{ lockedText }}</v-chip>
+        <v-spacer />
+        <v-btn @click="lock">{{lockedTextBtn}}</v-btn>
+      </v-card-actions>
     </v-card>
   </div>
 </template>
 
 <script>
 import { mapGetters, mapActions } from 'vuex'
-import {mdiAccountPlus} from '@mdi/js'
+import { mdiAccountPlus } from '@mdi/js'
 export default {
   name: 'Day',
   props: {
@@ -90,7 +94,8 @@ export default {
       getUser: 'sm/getUser',
       deleteUser: 'sm/deleteUser',
       setLoading: 'sm/setDayLoading',
-      setNotLoading: 'sm/setDayNotLoading'
+      setNotLoading: 'sm/setDayNotLoading',
+      lockDay: 'sm/lockDay'
     }),
     // eslint-disable-next-line no-unused-vars
     remove(deletedUser) {
@@ -126,6 +131,9 @@ export default {
         return 'grey lighten-4'
       }
     },
+    lock() {
+      this.lockDay({year: this.day.date.getFullYear(), month: this.day.date.getMonth() + 1, day: this.day.date.getDate(), locked: !this.day.locked})
+    }
   },
   computed: {
     ...mapGetters({
@@ -134,6 +142,15 @@ export default {
     }),
     worker() {
       return this.day.worker
+    },
+    lockedColor() {
+      return this.day.locked ? 'red' : 'green'
+    },
+    lockedText() {
+      return this.day.locked ? 'gesperrt' : 'frei'
+    },
+    lockedTextBtn() {
+      return this.day.locked ? 'freigeben' : 'sperren'
     }
   },
   watch: {
@@ -156,7 +173,7 @@ export default {
         for (let user in oldValue) {
           if (!newValue.includes(oldValue[user])) {
             deletedUser = oldValue[user]
-            console.log("deleteUser", deletedUser, this.day.date)
+            console.log('deleteUser', deletedUser, this.day.date)
             this.deleteUser({
               startdatetime: this.day.date,
               date: this.day.date.getTime() / 1000,
diff --git a/src/plugins/routes.js b/src/plugins/routes.js
index 128224f..12f123a 100644
--- a/src/plugins/routes.js
+++ b/src/plugins/routes.js
@@ -24,7 +24,8 @@ const url = {
     sm: {
       addUser: main + 'sm/addUser',
       deleteUser: main + 'sm/deleteUser',
-      getUser: main + 'sm/getUser'
+      getUser: main + 'sm/getUser',
+      lockDay: main + 'sm/lockDay'
     }
   },
   user: {
diff --git a/src/store/modules/jobs.js b/src/store/modules/jobs.js
index 82ca622..0dacce8 100644
--- a/src/store/modules/jobs.js
+++ b/src/store/modules/jobs.js
@@ -118,10 +118,10 @@ const mutations = {
     for (let week = 0; week < state.month.length; week++) {
       for (let day in state.month[week].days) {
         if (state.month[week].days[day].date - date === 0) {
-          let worker = state.month[week].days[day].worker.find(a => {
-            return a.username === user.username
-          })
           if (user) {
+            let worker = state.month[week].days[day].worker.find(a => {
+              return a.username === user.username
+            })
             if (!worker && data.com === 'add') {
               state.month[week].days[day].worker.push({
                 firstname: user.firstname,
@@ -211,11 +211,10 @@ const actions = {
           day: response.data.day
         })
       }
-      if (response.data.worker.length === 0)
-        commit('updateMonth', {
-          start: response.data.day.date,
-          day: response.data.day
-        })
+      commit('updateMonth', {
+        start: response.data.day.date,
+        day: response.data.day
+      })
       commit('setDayNotLoading', { date: data.startdatetime, getters })
     } catch (e) {
       if (e.response)
diff --git a/src/store/modules/serviceManagement.js b/src/store/modules/serviceManagement.js
index 1193de3..cb530da 100644
--- a/src/store/modules/serviceManagement.js
+++ b/src/store/modules/serviceManagement.js
@@ -47,7 +47,8 @@ const mutations = {
             date: currentDate,
             name: 'Montag',
             worker: [],
-            loading: false
+            loading: false,
+            locked: false
           }
           break
         case 2:
@@ -56,7 +57,8 @@ const mutations = {
             date: currentDate,
             name: 'Dienstag',
             worker: [],
-            loading: false
+            loading: false,
+            locked: false
           }
           break
         case 3:
@@ -70,7 +72,8 @@ const mutations = {
               date: currentDate,
               name: 'Mittwoch',
               worker: [],
-              loading: false
+              loading: false,
+              locked: false
             }
           }
           break
@@ -80,7 +83,8 @@ const mutations = {
             date: currentDate,
             name: 'Donnerstag',
             worker: [],
-            loading: false
+            loading: false,
+            locked: false
           }
           break
         case 5:
@@ -89,7 +93,8 @@ const mutations = {
             date: currentDate,
             name: 'Freitag',
             worker: [],
-            loading: false
+            loading: false,
+            locked: false
           }
           break
         case 6:
@@ -98,7 +103,8 @@ const mutations = {
             date: currentDate,
             name: 'Samstag',
             worker: [],
-            loading: false
+            loading: false,
+            locked: false
           }
           break
         case 0:
@@ -107,7 +113,8 @@ const mutations = {
             date: currentDate,
             name: 'Sontag',
             worker: [],
-            loading: false
+            loading: false,
+            locked: false
           }
           break
       }
@@ -153,10 +160,10 @@ const mutations = {
     for (let week = 0; week < state.month.length; week++) {
       for (let day in state.month[week].days) {
         if (state.month[week].days[day].date - date === 0) {
-          let worker = state.month[week].days[day].worker.find(a => {
-            return a.username === user.username
-          })
           if (user) {
+            let worker = state.month[week].days[day].worker.find(a => {
+              return a.username === user.username
+            })
             if (!worker && data.com === 'add') {
               state.month[week].days[day].worker.push({
                 firstname: user.firstname,
@@ -228,12 +235,17 @@ const actions = {
         { ...data },
         { headers: { Token: rootState.login.user.accessToken } }
       )
-      console.log(response.data)
       for (let item = 0; item < response.data.worker.length; item++) {
-        commit('updateMonth', { ...response.data.worker[item], com: 'add', day: response.data.day })
+        commit('updateMonth', {
+          ...response.data.worker[item],
+          com: 'add',
+          day: response.data.day
+        })
       }
-      if (response.data.worker.length === 0)
-        commit('updateMonth', { start: response.data.day.date, day:response.data.day})
+      commit('updateMonth', {
+        start: response.data.day.date,
+        day: response.data.day
+      })
       commit('setDayNotLoading', { date: data.startdatetime, getters })
     } catch (e) {
       if (e.response)
@@ -255,6 +267,19 @@ const actions = {
         if (e.response.status === 401) dispatch('logout', null, { root: true })
     }
   },
+  async lockDay({ commit, rootState, dispatch }, data) {
+    try {
+      const response = await axios.post(
+        url.vorstand.sm.lockDay,
+        { ...data },
+        { headers: { Token: rootState.login.user.accessToken } }
+      )
+      commit('updateMonth', { start: response.data.date, day: response.data })
+    } catch (e) {
+      if (e.response)
+        if (e.response.status === 401) dispatch('logout', null, { root: true })
+    }
+  },
   setDayLoading({ commit, getters }, date) {
     commit('setDayLoading', { date, getters })
   },