# Real Time Observability Event Tracking

Treasure Data is adding a reserved event column name “**td_rt_tracking_id** ” for the purposes of correlating an event with any activations caused by the event.

When you pass an event Universally Unique Identifier(UUID) with this column name into the real time system, it will write the column to your event table as normal and include it in the activations table.

**Example Activation Log Table:**

![](/assets/realtime-observability-event-tracking.502f96bfc00d0cd489884f57734e0f1e2387fc8cc219f032441091b18a7ac143.cf3845cb.png)

This will then enable you to join the two tables on this column as needed to get traceability of each event ingested to Treasure Data Platform.