diff --git a/src/main/java/ch/ethz/seb/sebserver/gui/service/examconfig/impl/ViewContext.java b/src/main/java/ch/ethz/seb/sebserver/gui/service/examconfig/impl/ViewContext.java
index 20e1fabf..bce56121 100644
--- a/src/main/java/ch/ethz/seb/sebserver/gui/service/examconfig/impl/ViewContext.java
+++ b/src/main/java/ch/ethz/seb/sebserver/gui/service/examconfig/impl/ViewContext.java
@@ -64,6 +64,10 @@ public final class ViewContext {
         this.readonly = readonly;
     }
 
+    public boolean isReadonly() {
+        return this.readonly;
+    }
+
     public I18nSupport getI18nSupport() {
         return this.i18nSupport;
     }
diff --git a/src/main/java/ch/ethz/seb/sebserver/gui/service/examconfig/impl/rules/BrowserViewModeRule.java b/src/main/java/ch/ethz/seb/sebserver/gui/service/examconfig/impl/rules/BrowserViewModeRule.java
index 8d7686f5..16328215 100644
--- a/src/main/java/ch/ethz/seb/sebserver/gui/service/examconfig/impl/rules/BrowserViewModeRule.java
+++ b/src/main/java/ch/ethz/seb/sebserver/gui/service/examconfig/impl/rules/BrowserViewModeRule.java
@@ -45,7 +45,7 @@ public class BrowserViewModeRule implements ValueChangeRule {
             final ConfigurationAttribute attribute,
             final ConfigurationValue value) {
 
-        if (StringUtils.isBlank(value.value)) {
+        if (context.isReadonly() || StringUtils.isBlank(value.value)) {
             return;
         }
 
diff --git a/src/main/java/ch/ethz/seb/sebserver/gui/service/examconfig/impl/rules/IgnoreSEBService.java b/src/main/java/ch/ethz/seb/sebserver/gui/service/examconfig/impl/rules/IgnoreSEBService.java
index e28f0b8e..e5f8e7b5 100644
--- a/src/main/java/ch/ethz/seb/sebserver/gui/service/examconfig/impl/rules/IgnoreSEBService.java
+++ b/src/main/java/ch/ethz/seb/sebserver/gui/service/examconfig/impl/rules/IgnoreSEBService.java
@@ -41,6 +41,10 @@ public class IgnoreSEBService implements ValueChangeRule {
             final ConfigurationAttribute attribute,
             final ConfigurationValue value) {
 
+        if (context.isReadonly()) {
+            return;
+        }
+
         if (KEY_IGNORE_SEB_SERVICE.equals(attribute.name)) {
             if (BooleanUtils.toBoolean(value.value)) {
                 context.disable(KEY_SEB_SERVICE_POLICY);
diff --git a/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/sebconfig/impl/ExamConfigIO.java b/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/sebconfig/impl/ExamConfigIO.java
index 6f60a330..9e77af50 100644
--- a/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/sebconfig/impl/ExamConfigIO.java
+++ b/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/sebconfig/impl/ExamConfigIO.java
@@ -37,6 +37,7 @@ import org.xml.sax.SAXException;
 
 import ch.ethz.seb.sebserver.gbl.Constants;
 import ch.ethz.seb.sebserver.gbl.async.AsyncServiceSpringConfig;
+import ch.ethz.seb.sebserver.gbl.model.sebconfig.Configuration;
 import ch.ethz.seb.sebserver.gbl.model.sebconfig.ConfigurationAttribute;
 import ch.ethz.seb.sebserver.gbl.model.sebconfig.ConfigurationValue;
 import ch.ethz.seb.sebserver.gbl.profile.WebServiceProfile;
@@ -140,7 +141,7 @@ public class ExamConfigIO {
                     .collect(Collectors.toList());
 
             final Function<ConfigurationAttribute, ConfigurationValue> configurationValueSupplier =
-                    getConfigurationValueSupplier(institutionId, configurationId);
+                    getConfigurationValueSupplier(configurationId);
 
             writeHeader(exportFormat, out);
 
@@ -316,11 +317,13 @@ public class ExamConfigIO {
     }
 
     private Function<ConfigurationAttribute, ConfigurationValue> getConfigurationValueSupplier(
-            final Long institutionId,
             final Long configurationId) {
 
+        final Configuration configuration = this.configurationDAO.byPK(configurationId)
+                .getOrThrow();
+
         final Map<Long, ConfigurationValue> mapping = this.configurationValueDAO
-                .allRootAttributeValues(institutionId, configurationId)
+                .allRootAttributeValues(configuration.institutionId, configurationId)
                 .getOrThrow()
                 .stream()
                 .collect(Collectors.toMap(
diff --git a/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/sebconfig/impl/ExamConfigServiceImpl.java b/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/sebconfig/impl/ExamConfigServiceImpl.java
index 144de3f8..46870da6 100644
--- a/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/sebconfig/impl/ExamConfigServiceImpl.java
+++ b/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/sebconfig/impl/ExamConfigServiceImpl.java
@@ -267,26 +267,6 @@ public class ExamConfigServiceImpl implements ExamConfigService {
             log.debug("Start to stream plain JSON SEB Configuration data for Config-Key generation");
         }
 
-//        if (true) {
-//            PipedOutputStream pout;
-//            PipedInputStream pin;
-//            try {
-//                pout = new PipedOutputStream();
-//                pin = new PipedInputStream(pout);
-//                this.examConfigIO.exportPlain(
-//                        ConfigurationFormat.JSON,
-//                        pout,
-//                        institutionId,
-//                        configurationNodeId);
-//
-//                final String json = IOUtils.toString(pin, "UTF-8");
-//
-//                log.trace("SEB Configuration JSON to create Config-Key: {}", json);
-//            } catch (final Exception e) {
-//                log.error("Failed to trace SEB Configuration JSON: ", e);
-//            }
-//        }
-
         PipedOutputStream pout = null;
         PipedInputStream pin = null;
         try {
diff --git a/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/sebconfig/impl/converter/TableConverter.java b/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/sebconfig/impl/converter/TableConverter.java
index 964f2336..96c3ade4 100644
--- a/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/sebconfig/impl/converter/TableConverter.java
+++ b/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/sebconfig/impl/converter/TableConverter.java
@@ -10,6 +10,7 @@ package ch.ethz.seb.sebserver.webservice.servicelayer.sebconfig.impl.converter;
 
 import java.io.IOException;
 import java.io.OutputStream;
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.HashSet;
@@ -73,9 +74,6 @@ public class TableConverter implements AttributeValueConverter {
 
         this.configurationAttributeDAO = configurationAttributeDAO;
         this.configurationValueDAO = configurationValueDAO;
-
-        log.info("******************************* inject ConfigurationValueDAO is {} configurationAttributeDAO is {}",
-                configurationValueDAO, configurationAttributeDAO);
     }
 
     @Override
@@ -112,15 +110,17 @@ public class TableConverter implements AttributeValueConverter {
             final ConfigurationValue value,
             final boolean xml) throws IOException {
 
-        log.info("******************************** Convert: {} -- {} -- {}", attribute, this.configurationValueDAO,
-                value);
-
-        final List<List<ConfigurationValue>> values = this.configurationValueDAO.getOrderedTableValues(
-                value.institutionId,
-                value.configurationId,
-                attribute.id)
-                .onError(error -> log.error("Failed to get table values for attribute: {}", attribute.name, error))
-                .getOrElse(() -> Collections.emptyList());
+        final List<List<ConfigurationValue>> values = new ArrayList<>();
+        if (value != null) {
+            values.addAll(this.configurationValueDAO.getOrderedTableValues(
+                    value.institutionId,
+                    value.configurationId,
+                    attribute.id)
+                    .onError(error -> log.error("Failed to get table values for attribute: {}", attribute.name, error))
+                    .getOrElse(() -> Collections.emptyList()));
+        } else {
+            log.warn("No ConfigurationValue for table: {}. Convert to empty table", attribute);
+        }
 
         final boolean noValues = CollectionUtils.isEmpty(values);