A conversion is a valuable action a person takes after seeing or clicking your ad, such as buying a product, filling in a form or booking a call. In Meta ads, a conversion is an action your website or business sends back to Meta so it can count it against the ad that earned it.
Types of conversions
Which actions count depends on your business. Most fall into two groups.
| Type | What it is | Examples |
|---|---|---|
| Main conversion | The action that makes you money or fills your pipeline | Purchase, lead, booked appointment, subscription |
| Supporting action | A step that shows interest but earns nothing yet | Product page view, add to cart, video view, newsletter sign-up |
Pick one main conversion per campaign and judge the campaign on it. Supporting actions are useful for spotting where people drop out of your marketing funnel, but a campaign that wins many of them can still fail on the main one.
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Try for Free ($0 Trial)How Meta counts a conversion
Meta can count a conversion only when something tells it that the action happened. That signal is an event, and it reaches Meta in one of two ways:
- The Meta Pixel. A snippet of code on your website fires an event when someone loads a page or clicks a button.
- The Conversions API. Your server sends the event straight to Meta, which does not depend on the visitor's browser.
Meta describes its website leads metric as counting lead events "tracked by the pixel or Conversions API on your website and attributed to your ads". Purchases work the same way: Meta adds up the value parameters you set for the purchase standard event. Many advertisers run both the Pixel and the Conversions API, so the same action is reported twice and Meta can combine the two reports.
Once an event arrives, Meta credits it to an ad only if the person saw or clicked that ad inside the attribution window. Meta's default is 7-day click, 1-day view and 1-day engagement. A person who clicked your ad nine days ago and then bought is not counted.
Conversions and results in Ads Manager
Ads Manager has no single column called "conversions" that fits every account. It reports results, which Meta defines as "the number of times your ad achieved an outcome, based on the objective and settings you selected". For a sales campaign, results are purchases. For a leads campaign they are leads. Divide your spend by them and you get cost per result in Meta ads, which for a sales or lead goal is your cost per acquisition.
Meta also notes that results "may not reflect how you’re billed for your ad". You pay for delivery, not for each conversion.
What to check if conversions look low
- Is the event firing? Test the Pixel on the page where the action finishes, such as the order confirmation page.
- Does it fire once per action? Duplicate events inflate results and hide the real cost.
- Does it carry a value? Without one, Meta can count a purchase but not report conversion value or ROAS.
- Is the browser blocking it? Browser privacy settings and ad blockers stop some Pixel events. Sending events from your server recovers part of that loss.
Our entry on conversion tracking goes through the setup.
Example. A dental clinic runs Meta ads for new patient check-ups. Its main conversion is a booked appointment, which its booking page reports to Meta as a lead event. It also watches visits to the pricing page as a supporting action. In one month the ads cost $1,200, Ads Manager shows 40 leads, and the clinic's calendar confirms 38 real bookings. Cost per lead is $30. The two missing bookings were phone calls the website never tracked, so the clinic adds a tracked call button to close the gap.
In Madgicx. Madgicx Cloud Tracking hosts Meta's Conversions API Gateway and Signals Gateway for you and sends conversions to Meta from the server, so Meta sees and attributes more of them. See tracking in Madgicx.
FAQ
What is a conversion in Facebook ads?
It is an action people take because of your ad, such as a purchase or a lead, that your Pixel or Conversions API reported to Meta. Ads Manager shows the count as results for the objective you chose.
What counts as a conversion?
Whatever you decide is the goal of the campaign. For a store it is a purchase, for a service business a lead or booking. Pick the action closest to revenue and track it as an event.
Is a click a conversion?
No. A click shows interest, but the conversion happens afterward, on your website or in your business. A click only counts as the result if clicking is itself the goal you set for the campaign, such as a link click objective.
Why do my conversions in Ads Manager differ from my store's orders?
Meta counts only conversions credited to your ads in the attribution setting, and some sales are missed by tracking. Your store counts every order from every source. The two numbers rarely match exactly.
What is the difference between a conversion and a conversion rate?
A conversion is one action. Conversion rate is the share of visitors or clicks that turned into conversions.
Related
- Related terms: Conversion rate, Conversion value, Conversion tracking, Cost per result in Meta ads
- Answer: How to optimize Facebook ads for conversions
Sources
- Website Leads, Meta Business Help Center
- Results, Meta Business Help Center
- Website Purchases Conversion Value, Meta Business Help Center
