diff --git a/controllers/argocd/argocd_controller.go b/controllers/argocd/argocd_controller.go
index efb4974d6..1243d38b0 100644
--- a/controllers/argocd/argocd_controller.go
+++ b/controllers/argocd/argocd_controller.go
@@ -130,6 +130,11 @@ func (r *ReconcileArgoCD) internalReconcile(ctx context.Context, request ctrl.Re
 		return reconcile.Result{}, argocd, err
 	}
 
+	// If the number of notification replicas is greater than 1, display a warning.
+	if argocd.Spec.Notifications.Replicas != nil && *argocd.Spec.Notifications.Replicas > 1 {
+		reqLogger.Info("WARNING: Argo CD Notification controller does not support multiple replicas. Notification replicas cannot be greater than 1.")
+	}
+
 	// Fetch labelSelector from r.LabelSelector (command-line option)
 	labelSelector, err := labels.Parse(r.LabelSelector)
 	if err != nil {