Facebook Ads Not Delivering or High CPM? Check Your Feedback Score
If your Facebook ads suddenly stopped delivering — or your CPM doubled overnight and nothing you change in Ads Manager fixes it — the cause often isn’t in Ads Manager at all. High CPM and delivery problems have many possible causes, but one of the most overlooked is your feedback score: the invisible customer-experience signal that quietly sets how cheaply, and how much, your ads get delivered.
The trap is that it doesn’t look like a customer-experience problem. It looks like an ads problem — so brands burn weeks swapping creatives and rebuilding campaigns while the real drag sits one layer down.
First, rule out the obvious
Before blaming anything hidden, clear the usual suspects — most delivery and CPM problems really do live here:
- Creative fatigue. Frequency climbing, CTR falling — the audience has seen it too often.
- Audience & competition. Too narrow, overlapping ad sets, or a seasonal spike in auction competition (Q4, sales events) lifting everyone’s CPM.
- The learning phase. Too many edits, or budgets too low to exit learning, leaving delivery unstable.
- Budget & bid setup. Sudden budget jumps, restrictive bid caps, or a tiny audience starving delivery.
- Policy & review. An ad or account flag quietly limiting how much can run.
If tightening these fixes it — great, you’re done. The problem is what happens when you’ve checked all of them and the account still won’t deliver at a sane cost.
When the usual fixes don’t work, look at the invisible signal
New creatives produce the same elevated CPM. New audiences don’t help. Restructuring changes nothing. That pattern — where the drag follows the account rather than any one campaign — is the signature of a signal problem, and your feedback score is the most common culprit. It’s the 0–5 rating Meta builds from post-purchase customer surveys, and it’s been invisible since Meta pulled the number from Business Suite in late 2024 — but it still shapes delivery and cost. A weak score is exactly the kind of thing that produces “everything looks fine but nothing performs.”
Why a weak signal shows up as high CPM and throttled delivery
Meta’s auction doesn’t run purely on your bid — it favours advertisers it reads as trustworthy and high-quality. In our experience, accounts effectively sit in tiers: strong-signal accounts get treated like preferred advertisers (cheaper CPM, smoother delivery, more room to scale), while accounts with a degraded customer-experience signal drift into worse tiers where the same bid buys less reach, delivery gets wobbly, and — at the bottom — ads get throttled or barely spend. You never see the tier. You just feel it as a CPM you can’t creative your way out of. (For the diagnostic view of this, see low feedback score: symptoms & what it’s costing you.)
Ads suddenly stopped or CPM doubled overnight? The timing tell
Sudden shifts have a fingerprint: they usually trail a customer-experience event by days or weeks. A logistics disruption, a bad supplier batch, a refund spike — and then CPM explodes or delivery stalls, seemingly out of nowhere. In our experience, when a store hits a fulfilment problem, you’ll often see the CPM follow shortly after. So if your ads “suddenly stopped” or costs jumped with no change on the ad side, look back at what changed on the operations side in the weeks prior. That lag is the tell that the feedback signal, not the creative, is what moved.
How to fix it — and what else to check
If the feedback signal is the cause, the fix is structural, not tactical: repair the customer-experience inputs (shipping, product, support) and then work down the accumulated history. We walk through it in how to improve your feedback score. Feedback score isn’t the only account-health factor that raises CPM or chokes delivery — account structure, compliance history, and Business Manager standing all play a part too — but it’s the one most brands never think to check, and often the biggest single lever. Rule it in or out before you spend another month blaming your creatives.
Get a straight answer on why your delivery broke
Diagnosing whether it’s your feedback signal, your account structure, or something else — without guesswork — is exactly what our team does. Across 1,000+ e-commerce accounts, Unlimited Scaling audits the signals behind your delivery and CPM, finds the real cause, and fixes it at the root. No guarantees, no shortcuts — just a clear diagnosis and the structural work to back it.
FAQ
Why did my Facebook ads suddenly stop delivering?
After ruling out the usual causes (learning phase, tiny audience, budget or bid issues, a policy flag), a common overlooked reason is a degraded feedback score. If the slowdown followed a fulfilment, product or refund problem by a few days or weeks, that customer-experience signal is worth checking — it can throttle delivery without any visible warning.
Why is my Facebook CPM so high all of a sudden?
CPM spikes can come from creative fatigue, auction competition or seasonality — but if new creatives and audiences don’t help, the drag is often at the account level. A weak feedback score tends to lower how favourably Meta treats your account in the auction, which shows up as a higher CPM floor you can’t creative your way out of.
Can a low feedback score really cause high CPM and delivery issues?
In our experience, yes — it’s one of the most common hidden causes. The feedback score feeds Meta’s trust and quality signals, which influence auction competitiveness and delivery. It’s not the only factor (structure and compliance matter too), but it’s the one most advertisers never think to check.
Written by Mouss, founder of Unlimited Scaling, an agency that has helped 1,000+ e-commerce brands recover and protect their Meta ad assets. Based in Bali, he has spent 8+ years inside the mechanics of Meta’s ad ecosystem — feedback scores, HIVA tiers, bans and appeals — and shares field data from real client cases. Follow him on Instagram @mouss_unlimitedscaling.