Understanding Your Result Metric in Adstellar

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Your Result Metric is the primary key performance indicator (KPI) that Adstellar uses to measure success across your campaign. It controls how performance data is displayed on the Performance page, which ads are flagged as top performers or underperformers, and how cost efficiency is calculated.

Think of it as telling Adstellar: "This is the outcome I care about most for this campaign."

Common result metrics include:

The metric you choose shapes everything you see on the Performance page. Here's what it directly affects:

Choosing the wrong result metric gives you a misleading picture of performance. For example, if you're running a purchase campaign but your result metric is set to "Link Clicks," the Performance page will optimize its view around clicks rather than the revenue-driving actions you actually care about.

Always set your result metric to match the real goal of your campaign.

Setting your result metric takes just a few seconds:

1. Navigate to the Performance page for your campaign.

2. Select the campaign(s) you want to update the result metric for.

3. Update the result metric

4. After clicking the 'Update' button, it may take a few seconds or minutes for the results to update. You will see a loading modal in the top right corner

Yes — you can update your result metric at any time from the Performance page. A few important things to know:

It's non-destructive. Changing your result metric has no impact on your actual campaign, ads, or delivery on Meta. It only affects how Adstellar displays and calculates your performance data.

Historical data recalculates automatically. When you switch metrics, all stats on the Performance page — cost per result, result totals, and performance rankings — update instantly to reflect the new selection.

It's campaign-specific. Each campaign has its own result metric setting. Changing it on one campaign won't affect any others.

This makes it easy to explore your data from multiple angles. You might use "Purchases" as your primary result metric, then temporarily switch to "Add to Carts" to evaluate upper-funnel performance — and switch right back whenever you're ready.

If you use a first-party attribution tool like Cometly, you can set a Cometly-tracked metric as your result metric in Adstellar — and this is often the most accurate way to measure performance.

Meta's default attribution can overcount or misattribute conversions due to its reliance on modeled data and broad click/view windows. First-party attribution tools like Cometly track conversions using your own server-side data, giving you a cleaner, more accurate picture of which ads are genuinely driving results.

When your Cometly integration is connected, Adstellar pulls in your Cometly attribution data alongside Meta's native metrics. On the Performance page, you'll see Cometly-specific options available in the Result Metric dropdown, including:

Select any of these as your result metric, and your entire Performance page — cost per result, rankings, and comparisons — will be driven by Cometly's first-party attribution data instead of Meta's reported numbers.

More accurate cost per acquisition. You'll see what you're actually paying per verified conversion, rather than Meta's often-inflated figures.

Better decision-making. When you scale or cut ads based on Cometly data, those decisions are grounded in first-party truth rather than platform-reported estimates.

Consistency across your stack. If your team already uses Cometly as the source of truth for attribution, setting it as your result metric in Adstellar keeps everything aligned in one place.

Note: To use Cometly metrics, you'll need an active Cometly integration connected to your Adstellar account. If you haven't set this up yet, go to Integrations to get started.

Still have questions? Reach out to our support team and we'll help you pick the right result metric for your campaigns.