diff --git a/whois-nrtm4-client/src/main/java/net/ripe/db/nrtm4/client/importer/DeltaMirrorImporter.java b/whois-nrtm4-client/src/main/java/net/ripe/db/nrtm4/client/importer/DeltaMirrorImporter.java
index 78b5199709..c0038cc932 100644
--- a/whois-nrtm4-client/src/main/java/net/ripe/db/nrtm4/client/importer/DeltaMirrorImporter.java
+++ b/whois-nrtm4-client/src/main/java/net/ripe/db/nrtm4/client/importer/DeltaMirrorImporter.java
@@ -15,6 +15,7 @@
 import org.slf4j.LoggerFactory;
 import org.springframework.context.annotation.Conditional;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Propagation;
 import org.springframework.transaction.annotation.Transactional;
 
 import java.io.BufferedReader;
@@ -72,6 +73,7 @@ private void processPayload(final byte[] deltaFilePayload, final String sessionI
         persistVersion(source, metadata.version, metadata.sessionId);
     }
 
+    @Transactional(transactionManager = NrtmClientTransactionConfiguration.NRTM_CLIENT_UPDATE_TRANSACTION)
     private Metadata persistDeltas(final byte[] deltaFilePayload, String sessionId) {
         ByteBuffer buffer = ByteBuffer.wrap(deltaFilePayload);
         InputStream inputStream = new ByteArrayInputStream(buffer.array(), buffer.position(), buffer.remaining());
diff --git a/whois-nrtm4-client/src/main/java/net/ripe/db/nrtm4/client/processor/UpdateNotificationFileProcessor.java b/whois-nrtm4-client/src/main/java/net/ripe/db/nrtm4/client/processor/UpdateNotificationFileProcessor.java
index 7de07e7bcd..f079394ec5 100644
--- a/whois-nrtm4-client/src/main/java/net/ripe/db/nrtm4/client/processor/UpdateNotificationFileProcessor.java
+++ b/whois-nrtm4-client/src/main/java/net/ripe/db/nrtm4/client/processor/UpdateNotificationFileProcessor.java
@@ -116,21 +116,22 @@ public void processFile(){
                 return;
             }
 
-            importRecordsAndPersistVersion(source, nrtmClientLastVersionInfo, updateNotificationFile, hostname);
-        });
-    }
-
-    private void importRecordsAndPersistVersion(final String source, final NrtmClientVersionInfo nrtmClientLastVersionInfo,
-                                                final UpdateNotificationFileResponse updateNotificationFile, final String hostname) {
-        try {
-            if (nrtmClientLastVersionInfo == null) {
-                LOGGER.info("There is no existing Snapshot for the source {}", source);
-                snapshotImporter.doImport(source, updateNotificationFile.getSessionID(), updateNotificationFile.getSnapshot());
-            }
+            processSnapshot(source, nrtmClientLastVersionInfo, updateNotificationFile);
 
             final List<UpdateNotificationFileResponse.NrtmFileLink> newDeltas = getNewDeltasFromNotificationFile(source, updateNotificationFile);
             deltaImporter.doImport(source, updateNotificationFile.getSessionID(), newDeltas);
             persistVersion(source, updateNotificationFile, hostname);
+        });
+    }
+
+    private void processSnapshot(final String source, final NrtmClientVersionInfo nrtmClientLastVersionInfo, final UpdateNotificationFileResponse updateNotificationFile) {
+
+        if (nrtmClientLastVersionInfo != null){
+            return;
+        }
+        try {
+            LOGGER.info("There is no existing Snapshot for the source {}", source);
+            snapshotImporter.doImport(source, updateNotificationFile.getSessionID(), updateNotificationFile.getSnapshot());
         } catch (Exception ex) {
             snapshotImporter.truncateTables();
             LOGGER.error("There was an issue importing the records", ex);