diff --git a/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/manualredactions/ManualRedactionService.java b/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/manualredactions/ManualRedactionService.java
index 1ee082376..5e566698c 100644
--- a/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/manualredactions/ManualRedactionService.java
+++ b/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/manualredactions/ManualRedactionService.java
@@ -105,6 +105,9 @@ public class ManualRedactionService {
         var dossierEntity = dossierPersistenceService.getAndValidateDossier(dossierId);
 
         for (AddRedactionRequest addRedactionRequest : requests) {
+
+            validateRequest(addRedactionRequest);
+
             manualRedactionDictionaryUpdateHandler.validateDictionariesForAdd(addRedactionRequest, addRedactionRequest.getValue());
             validatePositions(fileId, addRedactionRequest);
 
@@ -140,6 +143,14 @@ public class ManualRedactionService {
     }
 
 
+    private void validateRequest(AddRedactionRequest addRedactionRequest) {
+
+        if (addRedactionRequest.getValue().length() > 4000) {
+            throw new BadRequestException("Redaction value can not exceed 4000 characters");
+        }
+    }
+
+
     private Set<ManualRedactionEntry> convertEntriesToAdd(List<ManualRedactionEntryEntity> source) {
 
         return source.stream()
diff --git a/persistence-service-v1/persistence-service-server-v1/src/test/java/com/iqser/red/service/peristence/v1/server/integration/tests/ManualRedactionTest.java b/persistence-service-v1/persistence-service-server-v1/src/test/java/com/iqser/red/service/peristence/v1/server/integration/tests/ManualRedactionTest.java
index ca8f11c02..2d0e085b9 100644
--- a/persistence-service-v1/persistence-service-server-v1/src/test/java/com/iqser/red/service/peristence/v1/server/integration/tests/ManualRedactionTest.java
+++ b/persistence-service-v1/persistence-service-server-v1/src/test/java/com/iqser/red/service/peristence/v1/server/integration/tests/ManualRedactionTest.java
@@ -5,6 +5,7 @@ import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyBoolean;
@@ -16,6 +17,7 @@ import java.util.List;
 import java.util.Set;
 
 import org.apache.commons.lang3.RandomStringUtils;
+import org.apache.commons.lang3.StringUtils;
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 import org.mockito.Mockito;
@@ -47,6 +49,7 @@ import com.iqser.red.service.persistence.service.v1.api.shared.model.analysislog
 import com.iqser.red.service.persistence.service.v1.api.shared.model.analysislog.entitylog.EntryState;
 import com.iqser.red.service.persistence.service.v1.api.shared.model.analysislog.entitylog.EntryType;
 import com.iqser.red.service.persistence.service.v1.api.shared.model.analysislog.entitylog.Position;
+import com.iqser.red.service.persistence.service.v1.api.shared.model.annotations.AddRedactionRequest;
 import com.iqser.red.service.persistence.service.v1.api.shared.model.annotations.Rectangle;
 import com.iqser.red.service.persistence.service.v1.api.shared.model.dossiertemplate.dossier.file.FileType;
 import com.iqser.red.service.persistence.service.v1.api.shared.model.dossiertemplate.type.DictionaryEntryType;
@@ -2308,4 +2311,48 @@ public class ManualRedactionTest extends AbstractPersistenceServerServiceTest {
         assertEquals(entryToAdd.getValue(), entityLogEntry.getValue());
     }
 
+
+    @Test
+    public void testAddRedactionWithOver4000Characters() {
+
+        var dossierTemplate = dossierTemplateTesterAndProvider.provideTestTemplate();
+        var dossier = dossierTesterAndProvider.provideTestDossier(dossierTemplate);
+        var file = fileTesterAndProvider.testAndProvideFile(dossier);
+
+        var type = typeProvider.testAndProvideType(dossierTemplate, null, "type", false);
+
+        var entityLogEntry = EntityLogEntry.builder()
+                .id("annotationId")
+                .type(type.getType())
+                .value("lukeSkywalker")
+                .dictionaryEntry(true)
+                .entryType(EntryType.ENTITY)
+                .state(EntryState.APPLIED)
+                .legalBasis("legal basis")
+                .positions(List.of(new Position(1, 1, 1, 1, 1)))
+                .build();
+        var entityLog = new EntityLog(1,
+                                      1,
+                                      List.of(entityLogEntry),
+                                      null,
+                                      0,
+                                      0,
+                                      0,
+                                      0);
+        fileManagementStorageService.storeJSONObject(dossier.getId(), file.getId(), FileType.ENTITY_LOG, entityLog);
+        when(entityLogService.getEntityLog(any(), any(), anyBoolean())).thenReturn(entityLog);
+
+        var addRedactionRequest = AddRedactionRequestModel.builder()
+                .value(StringUtils.repeat("a", 4001))
+                .addToAllDossiers(false)
+                .addToDictionary(false)
+                .type("type")
+                .reason("reason")
+                .sourceId("sourceId")
+                .build();
+
+        String errorMessage = assertThrows(FeignException.BadRequest.class, () -> manualRedactionClient.addRedactionBulk(dossier.getId(), file.getId(), Set.of(addRedactionRequest))).getMessage();
+        assertTrue(errorMessage.contains("Redaction value can not exceed 4000 characters"));
+    }
+
 }