diff --git a/backend/whatsapp_templates.py b/backend/whatsapp_templates.py
index f5116f0..b1b7b7e 100644
--- a/backend/whatsapp_templates.py
+++ b/backend/whatsapp_templates.py
@@ -169,6 +169,7 @@ TEMPLATES: Dict[str, Dict[str, Any]] = {
             "event_date",      # body {{5}}
             "event_time",      # body {{6}}
             "guest_link",      # body {{7}}
+            "event_id",        # button {{1}} - for dynamic URL (not in body text)
         ],
         "button_type": "URL",
         "button_text": "הצבע על הזמנה",