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Guide · Updated

How do Facebook ad delivery and budget pacing work?

Short answer

Meta spends your budget by bidding in ad auctions, aiming to spend your average daily budget each day. It may spend up to 75% over on a good day, but without budget sharing no more than 7 times the daily budget in a week. If an ad set won't spend, check its audience, bid or cost goal, and budget.

Delivery problems come in two kinds: the ad set cannot spend, because of its status, a payment or a setting, or it spends but each result costs more than it did. For an ad set that won't spend, Meta's own checklist looks at three settings: an audience that is too narrow, a bid cap or cost per result goal set too low, and a daily budget under about 10 times the cost of your optimization event. New ads can take up to 24 hours to start delivering. Start with the three posts below, then go to the question that matches what Ads Manager shows you. To check the whole account at once, use the Meta ads audit checklist.

Start here

  1. Why are my Facebook ads not spending their budget?

    Nine fixes for a campaign that won't spend its budget, starting with Meta's spending limits and your bid.

  2. Why are my Facebook ads not delivering?

    Eight checks for ads that aren't delivering, from the Delivery column to review, payment, schedule and bids.

  3. How do I set a safe daily Meta ads budget?

    A worksheet that sets a safe daily ceiling from the cash you can actually spend.

Why is my campaign not spending its budget?

Why does one ad set get all the budget?

Why are my catalog ads not delivering?

Is my targeting too narrow, or competing with itself?

Is my bid strategy holding delivery back?

Did a payment problem stop my ads?

Why does my spend run above or below the budget?

How fast can I raise my budget?

Why did my CPM or CPA suddenly rise?

Where is my budget being wasted?

Sources: Troubleshoot ad delivery, About daily budgets, Troubleshoot ad delivery: your ad set hasn't delivered enough since it started, Troubleshoot ad delivery: one of your ad sets isn't running (checked 1 October 2026).

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