diff --git a/backend/src/services/scheduledMessages.service.ts b/backend/src/services/scheduledMessages.service.ts
index 7f2a266..c5f7aba 100644
--- a/backend/src/services/scheduledMessages.service.ts
+++ b/backend/src/services/scheduledMessages.service.ts
@@ -391,6 +391,7 @@ async function buildAndSend(rule: ScheduledMessageRule): Promise<void> {
     const windowVars: Record<string, string> = {
       date: formatDate(new Date()),
       window: `${formatDate(startDate)} – ${formatDate(endDate)}`,
+      date_range: `${formatDate(startDate)} – ${formatDate(endDate)}`,
       month: formatMonth(startDate),
     };