diff --git a/js/components/projects/legacySnapshotModal/index.js b/js/components/projects/legacySnapshotModal/index.js
new file mode 100644
index 000000000..7ce0dc984
--- /dev/null
+++ b/js/components/projects/legacySnapshotModal/index.js
@@ -0,0 +1,22 @@
+import React, { Fragment, useState } from 'react';
+import { Modal } from '../../common';
+import { DJANGO_CONTEXT } from '../../../utils/djangoContext';
+
+export const LegacySnapshotModal = ({ open, project, snapshot }) => {
+  const [legacyLink, setLegacyLink] = useState('');
+
+  if (DJANGO_CONTEXT['legacy_url'] && DJANGO_CONTEXT['legacy_url'] !== '' && legacyLink === '') {
+    setLegacyLink(`${DJANGO_CONTEXT['legacy_url']}/viewer/react/projects/${project}/${snapshot}`);
+  }
+
+  return (
+    <Modal open={open}>
+      <h3>
+        Snapshot is not recognized. Maybe it is available in the legacy system. Please try link below. <br />
+      </h3>
+      <a href={legacyLink} target="_blank">
+        Legacy link
+      </a>
+    </Modal>
+  );
+};
diff --git a/js/components/projects/projectPreview/index.js b/js/components/projects/projectPreview/index.js
index 287ffebf0..bfe1c7064 100644
--- a/js/components/projects/projectPreview/index.js
+++ b/js/components/projects/projectPreview/index.js
@@ -8,8 +8,9 @@ import { restoreCurrentActionsList } from '../../../reducers/tracking/dispatchAc
 import { setIsSnapshotDirty } from '../../../reducers/tracking/actions';
 import { setDownloadStructuresDialogOpen } from '../../snapshot/redux/actions';
 import { ToastContext } from '../../toast';
+import { LegacySnapshotModal } from '../legacySnapshotModal';
 
-export const ProjectPreview = memo(({ }) => {
+export const ProjectPreview = memo(({}) => {
   const { toast } = useContext(ToastContext);
   const [canShow, setCanShow] = useState(undefined);
   const isSnapshotLoaded = useRef(undefined);
@@ -23,6 +24,8 @@ export const ProjectPreview = memo(({ }) => {
   const isActionRestoring = useSelector(state => state.trackingReducers.isActionRestoring);
   const isActionRestored = useSelector(state => state.trackingReducers.isActionRestored);
 
+  const [showLegacySnapshotModal, setShowLegacySnapshotModal] = useState(false);
+
   useEffect(() => {
     if (!snapshotId && currentSnapshotID === null) {
       dispatch(loadSnapshotByProjectID(projectId))
@@ -49,6 +52,7 @@ export const ProjectPreview = memo(({ }) => {
                   setCanShow(true);
                 } else {
                   setCanShow(false);
+                  setShowLegacySnapshotModal(true);
                 }
                 if (response.data) {
                   const dataObj = JSON.parse(response.data);
@@ -59,6 +63,7 @@ export const ProjectPreview = memo(({ }) => {
               } else {
                 isSnapshotLoaded.current = response;
                 setCanShow(false);
+                setShowLegacySnapshotModal(true);
               }
             }
           })
@@ -96,5 +101,7 @@ export const ProjectPreview = memo(({ }) => {
           (currentSessionProject.projectID === null || currentSessionProject.authorID === null))
       }
     />
-  ) : null;
+  ) : (
+    <LegacySnapshotModal open={showLegacySnapshotModal} project={projectId} snapshot={snapshotId} />
+  );
 });