diff --git a/developer/Technical Documentation/Architecture/Data-Flow.md b/developer/Technical Documentation/Architecture/Data-Flow.md
index 469ed5b1d..8be269f58 100644
--- a/developer/Technical Documentation/Architecture/Data-Flow.md	
+++ b/developer/Technical Documentation/Architecture/Data-Flow.md	
@@ -111,3 +111,11 @@ flowchart LR
 
     K <--> |"Authentication/authorization data (using JWT)"| RF & PF
 ```
+
+## NOTICE
+
+This work is licensed under the [Apache-2.0](https://www.apache.org/licenses/LICENSE-2.0).
+
+- SPDX-License-Identifier: Apache-2.0
+- SPDX-FileCopyrightText: 2021-2023 Contributors to the Eclipse Foundation
+- Source URL: https://github.com/eclipse-tractusx/portal-assets