# Activity and Order History

Cortex provides full execution visibility for every server-side task, including fill history, errors, and lifecycle tracking.

### Activity Panel

All Cortex tasks appear in the Activity panel alongside your client side activity. Each task displays:

* **Symbol:** the instrument being traded
* **Type:** the order or algorithm type (e.g. TWAP, Chase)
* **Progress:** completion percentage
* **Duration:** elapsed time since the task started
* **Size:** total order size
* **Price:** current or average fill price
* **Details:** configuration summary (jitter, method, etc.)

You can expand any task to see detailed execution information and cancel running tasks at any time.

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### Execution History

Every Cortex task maintains a full execution history. For each lot or fill within a task, you can see:

* Fill status (filled, pending, failed)
* Execution price
* Filled size vs. target size
* Timestamp of execution

### Error Visibility

If an error occurs during execution -- for example, an exchange rejection or insufficient margin -- the error is surfaced with details in the task's execution history. This makes it straightforward to diagnose issues with long-running orders.

### Cross-Device Access

Activity and order history are available from any device logged into your account. There is no need to be on the same device that created the order.