diff --git a/apps/abstraction/main.py b/apps/abstraction/main.py
index 7839be5..9d6439b 100644
--- a/apps/abstraction/main.py
+++ b/apps/abstraction/main.py
@@ -190,6 +190,7 @@ async def handle_abstract_set(
         vendor_message = json.dumps(vendor_payload)
     
     logger.info(f"→ vendor SET {device_id}: {vendor_topic} ← {vendor_message}")
+    logger.debug(f"MQTT message published on {vendor_topic}: {vendor_message}")
     await mqtt_client.publish(vendor_topic, vendor_message, qos=1)