diff --git a/packages/frontend/src/locales/de.ts b/packages/frontend/src/locales/de.ts
index a02d3c3..3a8d2c8 100644
--- a/packages/frontend/src/locales/de.ts
+++ b/packages/frontend/src/locales/de.ts
@@ -88,9 +88,13 @@ const germanTranslation: Translation = {
       title: 'Abteilung',
       departmentAddedTitle: 'Abteilung hinzugefügt',
       departmentAddedText: 'Deine Abteilung wurde erfolgreich hinzugefügt und gespeichert.',
-      departmentMissingTitle: 'Abteilung hinzugefügen',
+      departmentMissingTitle: 'Abteilung hinzufügen',
       departmentMissingText: 'Du musst eine Abteilung eintragen, damit dein Bericht übergeben werden kann.',
     },
+    incomplete: {
+      title: 'Bericht unvollständig',
+      description: 'Bitte stelle sicher, dass alle Tage, deine Abteilung und deine Arbeitsstunden eingetragen sind.',
+    },
     unarchive: 'Aus dem Archiv holen',
     total: 'Wochenstunden',
     headingContainer: {
diff --git a/packages/frontend/src/locales/en.ts b/packages/frontend/src/locales/en.ts
index 84b07d0..a3cebd5 100644
--- a/packages/frontend/src/locales/en.ts
+++ b/packages/frontend/src/locales/en.ts
@@ -88,6 +88,10 @@ const englishTranslation: Translation = {
       departmentMissingTitle: 'Add department',
       departmentMissingText: 'You have to add a department to hand over your report.',
     },
+    incomplete: {
+      title: 'Report incomplete',
+      description: 'Please make sure all days, your department, and your working hours are filled in.',
+    },
     unarchive: 'Unarchive report',
     total: 'Hours per week',
     headingContainer: {
diff --git a/packages/frontend/src/locales/translation.ts b/packages/frontend/src/locales/translation.ts
index 989520d..448395e 100644
--- a/packages/frontend/src/locales/translation.ts
+++ b/packages/frontend/src/locales/translation.ts
@@ -85,6 +85,10 @@ export default interface Translation {
       departmentMissingTitle: string
       departmentMissingText: string
     }
+    incomplete: {
+      title: string
+      description: string
+    }
     reportSaveSuccess: string
     total: string
     headingContainer: {
diff --git a/packages/frontend/src/pages/report-page.tsx b/packages/frontend/src/pages/report-page.tsx
index 9a9cfc7..9c97598 100644
--- a/packages/frontend/src/pages/report-page.tsx
+++ b/packages/frontend/src/pages/report-page.tsx
@@ -151,7 +151,20 @@ const ReportPage: React.FunctionComponent = () => {
       <Spacer y="l">
         <Flex justifyContent={'flex-end'} alignItems={'center'}>
           {(reportTodo || reportReopened) && (
-            <PrimaryButton disabled={finishedDays !== 5 || !report.department} onClick={toggleHandoverModal}>
+            <PrimaryButton
+              onClick={() => {
+                if (finishedDays !== 5 && !report.department) {
+                  addToast({
+                    icon: 'Error',
+                    title: strings.report.incomplete.title,
+                    text: strings.report.incomplete.description,
+                    type: 'error',
+                  })
+                  return
+                }
+                toggleHandoverModal()
+              }}
+            >
               {strings.report.handover}
             </PrimaryButton>
           )}