> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mailerpath.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Campaign analytics

> Measure campaign send volume, delivery rates, engagement, and failure patterns.

Campaign analytics give you a summary of every campaign send. Use them after a launch to confirm delivery and track engagement over time.

## Available metrics

| Metric                   | Description                                        |
| ------------------------ | -------------------------------------------------- |
| `queued_count`           | Total emails queued for the campaign.              |
| `sent_count`             | Emails accepted by the email provider.             |
| `failed_count`           | Emails that failed after retries.                  |
| `open_rate`              | Percentage of sent emails that were opened.        |
| `click_rate`             | Percentage of sent emails with at least one click. |
| `delivery_rate`          | Percentage of queued emails successfully sent.     |
| `failure_rate`           | Percentage of queued emails that failed.           |
| `unique_recipients_sent` | Distinct contacts who received the campaign.       |
| `first_sent_at`          | Timestamp of the first email dispatched.           |
| `last_sent_at`           | Timestamp of the most recent email dispatched.     |
| `top_failure_reasons`    | Ranked list of failure causes with counts.         |

## How to read the metrics

**Low delivery rate**

* Check sender domain verification under [Brand and sender settings](/documentation/settings/brand-and-sender).
* Review `top_failure_reasons` for the most common issue.

**Low open rate**

* Review subject line quality and sender name.
* Confirm send timing aligns with the recipient timezone.
* Check that the campaign audience is highly relevant to the message.

**Low click rate**

* Verify calls to action are clear and present in the template.
* Confirm tracked links are properly formatted.

**High failure rate**

* Common causes: invalid recipient addresses, provider quota exhaustion, domain not verified.
* Check [Common API issues](/documentation/troubleshooting/common-api-issues) for resolution steps.

## Sent emails drill-down

For contact-level delivery detail, use the campaign sent emails list.

Supported filters when listing:

* `q`: search by email address
* `status`: filter by delivery status
* `contact_id`: narrow to a specific contact
* `from` / `to`: date range in RFC3339 format

## Practical analytics workflow

1. Launch campaign and wait for `sent_count` to stabilize.
2. Review `delivery_rate` and `top_failure_reasons` immediately.
3. Check `open_rate` and `click_rate` at 24 and 72 hours.
4. Use per-recipient status for contacts you want to follow up with.
5. Compare metrics against previous sends to identify trends.