diff --git a/pages/merlin7/01-Quick-Start-Guide/introduction.md b/pages/merlin7/01-Quick-Start-Guide/introduction.md
index 99e15e9..cc8ad84 100644
--- a/pages/merlin7/01-Quick-Start-Guide/introduction.md
+++ b/pages/merlin7/01-Quick-Start-Guide/introduction.md
@@ -17,3 +17,10 @@ redirect_from:
 Please do not use or rely on this documentation until this becomes official.
 This applies to any page under <b><a href="https://lsm-hpce.gitpages.psi.ch/merlin7/">https://lsm-hpce.gitpages.psi.ch/merlin7/</a></b>
 {{site.data.alerts.end}}
+
+This documentation offers basic information for using the Merlin7 cluster. As of August 2024, the system is in *preproduction*.
+**Only authorized test users are allowed to run in the cluster**.
+
+If, by mistake, you ended up o this page and you have not been contacted by the Merlin admins to become a test user, please ignore it.
+
+More information about the cluster will be soon available.