> ## 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.

# Complete How-To Guide for Setting up New Customer Purchase Metrics in Facebook (Meta) Ads Manager

> Set up the New Customer Purchase conversion in Facebook (Meta) Ads Manager to optimize campaigns for first-time buyers and report NC-ROAS alongside total ROAS.

<Tip>
  * Verify the **ncPurchase** event in [Meta Events Manager](https://business.facebook.com/events_manager).
  * Create the **NC Purchase** custom conversion and optimize it for **Purchase**.
  * Share the custom conversion with every Meta ad account that needs it.
  * In [Meta Ads Manager](https://adsmanager.facebook.com), customize columns to add NC Purchase metrics.
  * Create the **NC-ROAS** custom metric: `NC Purchase Conversion Value ÷ Amount spent`.
</Tip>

## Prerequisites

Before you start, you need:

* The **Meta destination** configured in Upstack Data — see [How to configure the Meta Pixel destination](/guides/facebook-ads/how-to-configure-facebook-meta-ads-pixel-destination-in-upstack-data)
* At least one real new-customer purchase already processed so the **ncPurchase** event appears in Meta Events Manager
* Admin access to the **Meta Business Manager** that owns the pixel and to every ad account you'll share the conversion with

## What you'll achieve

After completing all three parts below, **Meta Ads Manager** will display new-customer metrics — **NC-ROAS** (New Customer Return on Ad Spend), **Cost per NC Purchase**, and **Total NC Purchases** — directly in your campaigns, ad sets, and ads tables.

## Setup process overview

Set up new-customer purchase tracking in three parts. Complete them in order — later steps depend on earlier ones.

### Part 1 — Verify the ncPurchase event

Before you can create any custom conversions, the **ncPurchase** event must be verified in Meta Events Manager.

Guide to complete this step:

[How to verify the NC Purchase event in Meta Events Manager →](/guides/facebook-ads/how-to-verify-the-nc-purchase-event-in-facebook-meta-events-manager)

### Part 2 — Create and share the custom conversion

Once **ncPurchase** is verified, create the **NC Purchase** custom conversion and share it with your ad accounts.

Guide to complete this step:

[How to create and share the NC Purchase custom conversion →](/guides/facebook-ads/how-to-create-and-share-nc-purchase-custom-conversion-in-facebook-meta)

### Part 3 — Add metrics to Meta Ads Manager

Configure your Ads Manager columns to display the NC Purchase metrics and create the **NC-ROAS** custom metric.

Guide to complete this step:

[How to add NC Purchase metrics and NC-ROAS to Meta Ads Manager →](/guides/facebook-ads/how-to-add-nc-purchase-metrics-and-nc-roas-to-facebook-meta-ads-manager)

## Verify the setup is complete

Once you've finished all three parts, confirm:

* In [Meta Events Manager](https://business.facebook.com/events_manager), the **ncPurchase** event has no red triangle warning and is listed as **Active**.
* In **Custom Conversions**, **NC Purchase** is shared with the ad accounts you selected.
* In your Meta Ads Manager column layout, **NC Purchase (Total)**, **NC Purchase (Cost)**, and **NC-ROAS** are all visible.

<Note>
  **Done 🎉**

  Initially, the new columns may show **0** or **—** because Meta does **not** retroactively attribute custom conversions from before they were created. Data starts populating for new-customer purchases that occur **after** the conversion was created and shared. Allow 24–48 hours of new traffic before judging the values.
</Note>