> ## 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.

# Blended Cost per Appointment: Cross-Platform Booking Acquisition Cost

> Track your blended cost per appointment across Meta, Google, and TikTok ads. Measure booking acquisition efficiency with unified cost per appointment metrics.

<Tip>
  Blended Cost per Appointment measures how much you spend on average to drive each appointment or booking through your ads across all advertising platforms combined.
</Tip>

## Formula

<Info>
  **Blended Cost per Appointment** = [**Blended Spend**](/reference/metrics/advertising/blended/blended-spend/blended-spend) ÷ [**Blended Appointments Scheduled**](/reference/metrics/advertising/blended/blended-conversions/blended-appointments-scheduled)
</Info>

### Formula Components

| Metric                                                                                                                          | Definition                                                    |
| ------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------- |
| [**Blended Spend**](/reference/metrics/advertising/blended/blended-spend/blended-spend)                                         | Total advertising spend across all connected ad platforms     |
| [**Blended Appointments Scheduled**](/reference/metrics/advertising/blended/blended-conversions/blended-appointments-scheduled) | Total appointment bookings attributed across all ad platforms |

| Metadata        |                                                                                                     |
| --------------- | --------------------------------------------------------------------------------------------------- |
| **Type**        | Currency                                                                                            |
| **Data Source** | [Meta Ads](/sources/facebook-ads), [Google Ads](/sources/google-ads), [TikTok Ads](/sources/tiktok) |
| **Aggregation** | Ratio                                                                                               |

***

## Example

Your business spent **\$12,000** across all ad platforms last month and scheduled **300 appointments**.

| Metric                           | Value       |
| -------------------------------- | ----------- |
| Blended Spend                    | \$12,000    |
| Blended Appointments Scheduled   | 300         |
| **Blended Cost per Appointment** | **\$40.00** |

At **\$40 per appointment**, you can evaluate whether your cross-platform booking strategy is cost-effective compared to your target acquisition costs or the lifetime value of booked customers.

***

## How It Works

Blended Cost per Appointment aggregates total advertising spend from Meta, Google, and TikTok, then divides by the total number of appointments attributed to those platforms. This provides a unified view of appointment acquisition efficiency without platform-specific silos.

***

## When to Use

| Scenario                                     | Action                                                                         |
| -------------------------------------------- | ------------------------------------------------------------------------------ |
| Evaluating appointment generation efficiency | Compare blended cost per appointment against your target booking cost          |
| Budget planning for booking campaigns        | Use cost per appointment to forecast spend needed for appointment volume goals |
| Benchmarking against service value           | Compare cost per appointment to average revenue per booked customer            |
| Identifying efficiency trends                | Track cost per appointment over time to spot improvements or degradation       |

***

## Related Metrics

| Metric                                                                                                                      | Relationship                                                |
| --------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------- |
| [Blended Spend](/reference/metrics/advertising/blended/blended-spend/blended-spend)                                         | Numerator — total ad spend across platforms                 |
| [Blended Appointments Scheduled](/reference/metrics/advertising/blended/blended-conversions/blended-appointments-scheduled) | Denominator — total appointments across platforms           |
| [Blended Cost per Lead](/reference/metrics/advertising/blended/blended-conversions/blended-cost-per-lead)                   | Similar efficiency metric for leads instead of appointments |

[See all Blended Conversions metrics →](/reference/metrics/advertising/blended/blended-conversions)