diff --git a/backend/src/app.py b/backend/src/app.py
index 4d73f8e..49b4da4 100644
--- a/backend/src/app.py
+++ b/backend/src/app.py
@@ -172,18 +172,66 @@ def survey():
 
     # get data from the survey and write it to the database
 
+    # placeholder if the survey is valid
+    is_survey_valid = True
+
+    # Check age if it's numeric
     age = req.get('age', None)
+    if not age.isnumeric():
+        is_survey_valid = False
+
+    # check gender possibilites
     gender = req.get('gender', None)
+    possible_genders = [
+        "male",
+        "female",
+        "divers",
+        "sex_na"
+    ]
+    if gender not in possible_genders:
+        is_survey_valid = False
+
+    # check education possibilities
     education = req.get('education', None)
+    possible_education = [
+        "edu_lehre",
+        "edu_gymnasium",
+        "edu_berufsmatura",
+        "edu_bachelor",
+        "edu_Master",
+        "edu_na"
+    ]
+    if education not in possible_education:
+        is_survey_valid = False
+
+    # check skills values
     skills = req.get('skills', None)
-    user_db = User.query.filter_by(id=id_req).first()
-    user_db.age = age
-    user_db.gender = gender
-    user_db.education = education
-    user_db.skills = skills
-    db.session.commit()
-    ret = {'message': 'Umfrage freigestellt'}
-    return ret, 200
+    possible_skills = [
+        "skills_sehr_gut",
+        "skills_gut",
+        "skills_mittel",
+        "skills_nicht_so_good",
+        "skills_garnicht",
+        "skills_na"
+    ]
+
+    if skills not in possible_skills:
+        is_survey_valid = False
+
+    if is_survey_valid:
+        user_db = User.query.filter_by(id=id_req).first()
+        user_db.age = age
+        user_db.gender = gender
+        user_db.education = education
+        user_db.skills = skills
+        db.session.commit()
+        print(req)
+        ret = {'message': 'Vielen Dank für das Ausfüllen der Umfrage.'}
+        return ret, 200
+    else:
+        ret = {
+            'message': 'Einige der Felder stimmen nicht überein und müssen angepasst werden.'}
+        return ret, 400
 
 
 @app.route('/time')
diff --git a/frontend/src/components/pages/Umfrage.js b/frontend/src/components/pages/Umfrage.js
index 26aac1a..fc83439 100644
--- a/frontend/src/components/pages/Umfrage.js
+++ b/frontend/src/components/pages/Umfrage.js
@@ -21,6 +21,10 @@ export default function Umfrage() {
   const [educationErrorMessage, setEducationErrorMessage] = useState("");
   const [skillsErrorMessage, setSkillsErrorMessage] = useState("");
 
+  const [backendErrorMessage, setBackendErrorMessage] = useState("");
+  const [backendSuccessMessage, setBackendSuccessMessage] = useState("");
+  const [isSurveyValidBackend, setIsSurveyValidBackend] = useState("");
+
   /* boolean if the values are ok */
   const [isAgeOk, setIsAgeOk] = useState("");
   const [isGenderOk, setIsGenderOk] = useState("");
@@ -71,10 +75,23 @@ export default function Umfrage() {
       setIsSkillsOk(false);
     }
 
+    setIsSurveyValid(true);
     if (isSurveyValid === true) {
       authFetch("/api/protected/umfrage", {
         method: "post",
         body: JSON.stringify(opts),
+      }).then((response) => {
+        if (response.status === 200) {
+          response.json().then((r) => {
+            setBackendSuccessMessage(r.message);
+            setIsSurveyValidBackend(true);
+          });
+        } else {
+          response.json().then((r) => {
+            setBackendErrorMessage(r.message);
+            setIsSurveyValidBackend(false);
+          });
+        }
       });
     }
   };
@@ -135,7 +152,7 @@ export default function Umfrage() {
               </option>
               <option value="male">Männlich</option>
               <option value="female">Weiblich</option>
-              <option value="divers">divers</option>
+              <option value="divers">Divers</option>
               <option value="sex_na">Keine Angabe</option>
             </select>
           </div>
@@ -154,12 +171,12 @@ export default function Umfrage() {
               <option disabled value="DEFAULT">
                 -- Bitte wähle deine Ausbildung aus --
               </option>
-              <option>Berufslehre</option>
-              <option>Gymnasiale Maturität</option>
-              <option>Berufsmatura</option>
-              <option>Bachelor</option>
-              <option>Master oder höher</option>
-              <option>Keine Angabe</option>
+              <option value="edu_lehre">Berufslehre</option>
+              <option value="edu_gymnasium">Gymnasiale Maturität</option>
+              <option value="edu_berufsmatura">Berufsmatura</option>
+              <option value="edu_bachelor">Bachelor</option>
+              <option value="edu_Master">Master oder höher</option>
+              <option value="edu_na">Keine Angabe</option>
             </select>
           </div>
           {!isEducationOk && <ErrorMessage message={educationErrorMessage} />}
@@ -178,12 +195,12 @@ export default function Umfrage() {
               <option disabled value="DEFAULT">
                 -- Bitte wähle etwas aus --
               </option>
-              <option>Sehr gut</option>
-              <option>Gut</option>
-              <option>Mittel</option>
-              <option>Eher nicht so gut</option>
-              <option>Gar nicht gut</option>
-              <option>Keine Angabe</option>
+              <option value="skills_sehr_gut">Sehr gut</option>
+              <option value="skills_gut">Gut</option>
+              <option value="skills_mittel">Mittel</option>
+              <option value="skills_nicht_so_good">Eher nicht so gut</option>
+              <option value="skills_garnicht">Gar nicht gut</option>
+              <option value="skills_na">Keine Angabe</option>
             </select>
           </div>
           {!isSkillsOk && <ErrorMessage message={skillsErrorMessage} />}
@@ -194,6 +211,11 @@ export default function Umfrage() {
             onClick={onSubmitClick}
           />
         </form>
+        {!isSurveyValidBackend ? (
+          <ErrorMessage message={backendErrorMessage} />
+        ) : (
+          <p>{backendSuccessMessage}</p>
+        )}
       </div>
       <Footer />
     </>