Step 1: Start
Step 2: Response loaded
Step 3: TrackingService loaded
Step 4: Tracking number: TEST123
Step 5: TrackingService object created
Step 6: Data fetched
<pre>Array
(
    [tracking_number] => TEST123
    [status] => error
    [error] => API Error: 400
    [updated] => 2026-06-11 14:06:36
)
</pre>