diff --git a/src/main/java/DNPM/services/consent/UkwConsentManagerService.java b/src/main/java/DNPM/services/consent/UkwConsentManagerService.java
index 46b7d05..c22a6e4 100644
--- a/src/main/java/DNPM/services/consent/UkwConsentManagerService.java
+++ b/src/main/java/DNPM/services/consent/UkwConsentManagerService.java
@@ -15,7 +15,7 @@ import java.util.Comparator;
  */
 public class UkwConsentManagerService implements ConsentManagerService {
 
-    private Logger logger = LoggerFactory.getLogger(this.getClass());
+    private final Logger logger = LoggerFactory.getLogger(this.getClass());
 
     private final IOnkostarApi onkostarApi;
 
@@ -48,10 +48,10 @@ public class UkwConsentManagerService implements ConsentManagerService {
                 .ifPresent(lastConsent -> {
                     var date = lastConsent.getStartDate();
                     var status = lastConsent.getValue("status");
-                    if (null == status) {
+                    if (null == date || null == status || status.getString().isBlank()) {
                         logger.warn("Kein DNPM-Einwilligungstatus angegeben");
                         return;
-                    };
+                    }
 
                     dnpmKlinikAnamnese.setValue("ConsentStatusEinwilligungDNPM", new Item("Einwilligung", status.getString()));
                     dnpmKlinikAnamnese.setValue("ConsentDatumEinwilligungDNPM", new Item("DatumEinwilligung", date));
diff --git a/src/test/java/DNPM/services/consent/UkwConsentManagerServiceTest.java b/src/test/java/DNPM/services/consent/UkwConsentManagerServiceTest.java
index 824b4ff..fdcd6e3 100644
--- a/src/test/java/DNPM/services/consent/UkwConsentManagerServiceTest.java
+++ b/src/test/java/DNPM/services/consent/UkwConsentManagerServiceTest.java
@@ -51,6 +51,58 @@ public class UkwConsentManagerServiceTest {
         verify(onkostarApi, times(0)).saveProcedure(any(Procedure.class), anyBoolean());
     }
 
+    @Test
+    void testShouldSkipUpdateRelatedDnpmKlinikAnamneseFormIfNoConsentDateAvailable() throws Exception {
+
+        var consentSubForm = new Procedure(this.onkostarApi);
+        consentSubForm.setId(1);
+        consentSubForm.setPatientId(123);
+        consentSubForm.setValue("status", new Item("status", "accepted"));
+
+
+        var excelForm = new Procedure(this.onkostarApi);
+        excelForm.setId(111);
+        excelForm.setPatientId(123);
+        excelForm.setValue("refdnpmklinikanamnese", new Item("refdnpmklinikanamnese", 2));
+        excelForm.addSubProcedure("ufdnpmconsent", consentSubForm);
+
+        var dnpmKlinikAnamneseForm = new Procedure(this.onkostarApi);
+        dnpmKlinikAnamneseForm.setId(2);
+        dnpmKlinikAnamneseForm.setPatientId(123);
+
+        when(onkostarApi.getProcedure(anyInt())).thenReturn(dnpmKlinikAnamneseForm);
+
+        this.service.applyConsent(excelForm);
+
+        verify(onkostarApi, times(0)).saveProcedure(any(Procedure.class), anyBoolean());
+    }
+
+    @Test
+    void testShouldSkipUpdateRelatedDnpmKlinikAnamneseFormIfNoConsentValueAvailable() throws Exception {
+
+        var consentSubForm = new Procedure(this.onkostarApi);
+        consentSubForm.setId(1);
+        consentSubForm.setPatientId(123);
+        consentSubForm.setStartDate(Date.from(Instant.parse("2023-04-03T12:00:00Z")));
+        consentSubForm.setValue("datum", new Item("datum", Date.from(Instant.parse("2023-04-03T12:00:00Z"))));
+
+        var excelForm = new Procedure(this.onkostarApi);
+        excelForm.setId(111);
+        excelForm.setPatientId(123);
+        excelForm.setValue("refdnpmklinikanamnese", new Item("refdnpmklinikanamnese", 2));
+        excelForm.addSubProcedure("ufdnpmconsent", consentSubForm);
+
+        var dnpmKlinikAnamneseForm = new Procedure(this.onkostarApi);
+        dnpmKlinikAnamneseForm.setId(2);
+        dnpmKlinikAnamneseForm.setPatientId(123);
+
+        when(onkostarApi.getProcedure(anyInt())).thenReturn(dnpmKlinikAnamneseForm);
+
+        this.service.applyConsent(excelForm);
+
+        verify(onkostarApi, times(0)).saveProcedure(any(Procedure.class), anyBoolean());
+    }
+
     @Test
     void testShouldUpdateRelatedDnpmKlinikAnamneseFormOnFormSave() throws Exception {