diff --git a/src/node/waku_node.py b/src/node/waku_node.py
index eefb0782..99e565b0 100644
--- a/src/node/waku_node.py
+++ b/src/node/waku_node.py
@@ -121,6 +121,20 @@ class WakuNode:
             # "filter-subscription-timeout": "600",
         }
 
+        store_sync = kwargs.pop("store_sync", "false").lower() == "true"
+        store_sync_range = kwargs.pop("store_sync_range", None)
+        store_sync_interval = kwargs.pop("store_sync_interval", None)
+
+        if store_sync:
+            default_args["store-sync"] = "true"
+            default_args.setdefault("store", "true")
+
+        if store_sync_range:
+            default_args["store-sync-range"] = store_sync_range
+
+        if store_sync_interval:
+            default_args["store-sync-interval"] = store_sync_interval
+
         if self.is_nwaku():
             nwaku_args = {
                 "shard": "0",
diff --git a/src/steps/common.py b/src/steps/common.py
index 79c297e8..ccdfcf53 100644
--- a/src/steps/common.py
+++ b/src/steps/common.py
@@ -2,6 +2,7 @@ import base64
 import hashlib
 import inspect
 from time import time
+from time import time_ns
 import allure
 import pytest
 from datetime import timedelta, datetime
@@ -39,7 +40,9 @@ class StepsCommon:
 
     @allure.step
     def create_message(self, **kwargs):
-        message = {"payload": to_base64(self.test_payload), "contentTopic": self.test_content_topic, "timestamp": int(time() * 1e9)}
+        ts_ns = time_ns()
+        ts_ns = int(f"{ts_ns:019d}")
+        message = {"payload": to_base64(self.test_payload), "contentTopic": self.test_content_topic, "timestamp": ts_ns}
         message.update(kwargs)
         return message
 
diff --git a/src/steps/store.py b/src/steps/store.py
index 9d6649bd..543db8c4 100644
--- a/src/steps/store.py
+++ b/src/steps/store.py
@@ -225,6 +225,7 @@ class StepsStore(StepsCommon):
                 **kwargs,
             )
 
+            logger.debug(f"messages length is {len(self.store_response.messages)}")
             assert self.store_response.messages, f"Peer {node.image} couldn't find any messages. Actual response: {self.store_response.resp_json}"
             assert len(self.store_response.messages) >= len(
                 messages_to_check
diff --git a/tests/store_sync/test_store_sync.py b/tests/store_sync/test_store_sync.py
index 0a947517..042855ab 100644
--- a/tests/store_sync/test_store_sync.py
+++ b/tests/store_sync/test_store_sync.py
@@ -993,3 +993,99 @@ class TestStoreSync(StepsStore):
         resp3 = self.get_messages_from_store(self.node3, page_size=200, cursor="", ascending="true", peer_id="")
         logger.debug("Node3 store has %d messages expected %d", len(resp3.messages), msgs_to_publish)
         assert len(resp3.messages) == msgs_to_publish, f"Node3 store mismatch: expected {msgs_to_publish}, " f"got {len(resp3.messages)}"
+
+    def test_continuous_store_sync(self):
+        msgs_per_round = 30
+        rounds = 3
+        sleep_between_rounds = 30
+        publish_delay = 0.01
+        sync_interval = 6
+        sync_range = 600
+        jitter = 0
+
+        self.node1.start(
+            store="true",
+            store_sync="true",
+            relay="true",
+            dns_discovery="false",
+        )
+
+        self.node2.start(
+            store="true",
+            store_sync="true",
+            store_sync_interval=sync_interval,
+            store_sync_range=sync_range,
+            store_sync_relay_jitter=jitter,
+            relay="false",
+            dns_discovery="false",
+        )
+
+        self.add_node_peer(self.node2, [self.node1.get_multiaddr_with_id()])
+
+        total_published = 0
+        for _ in range(rounds):
+            for _ in range(msgs_per_round):
+                self.publish_message(sender=self.node1, via="relay")
+                total_published += 1
+                time.sleep(publish_delay)
+
+            time.sleep(sync_interval * 2)
+
+            resp = self.get_messages_from_store(
+                self.node2,
+                page_size=100,
+                cursor="",
+                ascending="true",
+                peer_id="",
+            )
+            logger.debug(f"Node-2 store has {len(resp.messages)}/{total_published} messages")
+            assert len(resp.messages) == total_published, f"expected {total_published}, got {len(resp.messages)}"
+
+            time.sleep(sleep_between_rounds)
+
+    def test_store_sync_high_jitter_stress(self):
+        sync_interval = 10
+        sync_range = 120
+        jitter = 90
+        msgs_per_node = 50
+        message_delay = 0.0
+        page_size = 100
+
+        nodes = [self.node1, self.node2, self.node3]
+
+        for n in nodes:
+            n.start(
+                store="true",
+                store_sync="true",
+                store_sync_interval=sync_interval,
+                store_sync_range=sync_range,
+                store_sync_relay_jitter=jitter,
+                relay="true",
+                dns_discovery="false",
+            )
+            n.set_relay_subscriptions([self.test_pubsub_topic])
+
+        for i, a in enumerate(nodes):
+            for b in nodes[i + 1 :]:
+                self.add_node_peer(a, [b.get_multiaddr_with_id()])
+                self.add_node_peer(b, [a.get_multiaddr_with_id()])
+
+        expected_hashes = []
+        for _ in range(msgs_per_node):
+            msgs = [self.create_message() for _ in nodes]
+            for node, msg in zip(nodes, msgs):
+                self.publish_message(
+                    sender=node,
+                    via="relay",
+                    message=msg,
+                    message_propagation_delay=message_delay,
+                )
+                expected_hashes.append(self.compute_message_hash(self.test_pubsub_topic, msg, hash_type="hex"))
+
+        delay(120)
+
+        for node in nodes:
+            store_resp = self.get_messages_from_store(node, page_size=page_size, ascending="true")
+            retrieved_hashes = [store_resp.message_hash(i) for i in range(len(store_resp.messages))]
+            assert len(retrieved_hashes) == len(expected_hashes), " message count mismatch"
+            assert retrieved_hashes == expected_hashes, "{ message hash mismatch"