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

# Meta Completed Registrations: Account Sign-ups from Ads

> Track Meta Completed Registrations to measure how many people signed up for accounts after engaging with your Meta ads. Optimize sign-up campaigns.

<Tip>
  Meta Completed Registrations counts how many people finished a registration or sign-up flow after engaging with your Meta ads.
</Tip>

## Formula

<Info>
  **Meta Completed Registrations** = **COUNT** ( CompleteRegistration events )
</Info>

| Metadata        |                                   |
| --------------- | --------------------------------- |
| **Type**        | Number                            |
| **Data Source** | [Meta Ads](/sources/facebook-ads) |
| **Aggregation** | Count                             |

***

## Example

Your SaaS app ran a Meta campaign promoting free trial sign-ups. In the first week, **842 registrations** were completed.

| Campaign               | Spend   | Registrations | Cost per Registration |
| ---------------------- | ------- | ------------- | --------------------- |
| Free Trial - Broad     | \$2,400 | 512           | \$4.69                |
| Free Trial - Lookalike | \$1,800 | 330           | \$5.45                |

***

## How It Works

Meta tracks the CompleteRegistration event fired when a user finishes your sign-up flow. Attribution follows your account's attribution window settings (typically 7-day click, 1-day view). Registrations from both Facebook and Instagram placements are combined.

***

## When to Use

| Scenario                                | Action                                                      |
| --------------------------------------- | ----------------------------------------------------------- |
| Evaluating sign-up campaign performance | Compare registration volume across ad sets                  |
| Optimizing for lower-funnel conversions | Use as the conversion event for campaign optimization       |
| Building lead generation funnels        | Track progression from lead to registered user              |
| Calculating customer acquisition costs  | Pair with cost per registration to find efficient campaigns |

***

## Related Metrics

| Metric                                                                                                        | Relationship                                           |
| ------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------ |
| [Meta Cost per Registration](/reference/metrics/advertising/meta/meta-conversions/meta-cost-per-registration) | Spend efficiency per registration                      |
| [Meta Leads](/reference/metrics/advertising/meta/meta-conversions/meta-leads)                                 | Earlier funnel stage before registration               |
| [Meta Spend](/reference/metrics/advertising/meta/meta-spend/meta-spend)                                       | Total ad spend used to calculate cost per registration |

[See all Meta Conversions metrics →](/reference/metrics/advertising/meta/meta-conversions)