Meta conversions gone? Your domain may be restricted

A dental clinic's Meta campaigns bring in leads as usual on Friday. On Monday you check the weekend and there isn't a single Lead event. Nobody changed anything. Google Analytics shows the forms working and the submissions coming in, yet Meta sees none of them.

Often the tracking isn't broken at all. Meta has put the domain under a data sharing restriction.

What a data sharing restriction is

Meta restricts the website, not the ad account and not a particular ad. From the data the pixel sends (the domain, the page path, the URL parameters) it decides which category the site belongs to. If that category is sensitive, it stops accepting some events from the domain, or all of them.

The reason sits in Meta's own business terms: advertisers mustn't send Meta health, financial or other sensitive information. If the pixel fires on a /sedation-tooth-extraction page, the URL alone tells Meta what the visitor needs. The categorisation is automatic, and from the outside it often looks random.

The nasty part is that nothing switches off. The pixel keeps firing on every page and the campaigns keep spending. The events just never reach Events Manager. So the algorithm loses the signal it optimises on, retargeting audiences stop refreshing and your reporting goes quiet.

Who gets hit

These areas are hit most often:

• health, clinics and dental
• supplements and wellness
• pharma and CBD
• financial services, lending and crypto
• gambling
• alcohol, tobacco and vaping
• adult content and sexual wellness
• weapons
• faith and spirituality

It isn't a rare edge case. In August 2026 Metamorph checked 36,717 health and wellness sites running a Meta pixel across 33 countries. Of those, 15,144 were restricted, which is 41.2%. In the UK it was 1,593 out of 3,870 (41.2%), in the US 2,269 out of 4,922 (46.1%).

The three levels

Metamorph's guide describes three levels:

• Level 1. Meta stops accepting page paths and URL parameters. You'll barely notice it in reporting, but custom conversions and audiences built on URLs stop filling.
• Level 2. Certain standard events are blocked, usually the bottom of the funnel: Lead, CompleteRegistration, Purchase. You can't optimise for them any more.
• Level 3. Fully blocked. Even PageView barely gets through, and the best you can optimise for is clicks.

Levels 2 and 3 call for the same fix.

How you'll spot it

Meta sends an email about 30 days before the restriction starts, but only to Business Manager admins. If the person running the campaigns isn't an admin, they never see it. The client gets it, doesn't know what it means and files it away. So it's worth looking for the signs yourself:

• Events Manager shows the "Data sharing restrictions applied" notice.
• Google Analytics or the CRM shows conversions and Meta doesn't.
• URL-based custom audiences stop filling.
• In the browser console the pixel reports that it's unavailable, or that you're trying to send a restricted event.

If you think Meta has categorised the site wrongly, you can request a review in Events Manager. That's only worth it if the category really is wrong. A real clinic stays a real health site, and the restriction stays too.

Why the Conversions API alone won't fix it

Plenty of people set up the Conversions API (CAPI) at this point and wait for the problem to go away. It won't. CAPI changes where the event comes from: the server instead of the browser. But the event still names the same domain, and the restriction belongs to the domain. A server-side event gets dropped just the same.

CAPI is still worth having, because it gives Meta more and better data. It doesn't solve this problem on its own.

What Metamorph does

Metamorph takes over from the pixel code on your site, captures the events you already track, and sends them on through the Conversions API from a source Meta hasn't categorised. So your standard and custom events arrive again, and Meta optimises on real data again.

The practical side:

• You keep your existing pixel and ad account.
• Metamorph's team does the set-up. They get in touch within 24 hours on business days, and you don't install anything.
• 100 EUR a month per pixel, plus VAT. That includes 10 million events per pixel each month.
• A 7-day free trial (no card is charged during it), and you can cancel at any time.

More than 20 advertisers already use Metamorph, and not one of them has cancelled.

Find out in a minute whether it affects you

The easiest way is to run Metamorph's free Meta restriction audit. There's no sign-up and no account to create. You enter your first name, your email address and your website, and after about a minute you see the result on the same page. The audit checks against Meta live, and if you're affected, it tells you which category triggered it.

If your site isn't restricted, Metamorph stores nothing. If it is, Metamorph emails you the details and the possible next steps.

It's useful for agencies too: before you take over a new client's Meta account, a minute tells you whether this surprise is waiting for you.

I've also put the signs, the check and Metamorph's price on one page: blocked Meta pixel restoration.

If you'd like your whole tracking set-up reviewed, not just this one issue, that's what my web measurement service covers.

If you have any questions about the check or Metamorph, feel free to get in touch: info@bodzermarketing.com