What is budget pacing?
The simplest case is a straight-line budget. A campaign with a $30,000 monthly budget should have spent about $15,000 halfway through the month if it's meant to spend evenly.
Pacing problems are common and costly. A campaign that stopped spending can stay dark for days. One that overspends can hit its cap and go quiet right before a key sales period.
How do you calculate budget pacing?
The simplest version compares actual spend with expected spend: pacing = spend to date / (budget x share of the flight elapsed). A result of 100% is on pace.
| Pacing | What it means | What to check |
|---|---|---|
| Well above 100% | Spending faster than planned | Bids, caps, and whether to rebalance |
| Around 100% | On pace | Whether results are keeping up |
| Well below 100% | Spending slower than planned | Delivery issues, approvals, feeds, and targeting |
| 0% after launch | No spend at all | Data freshness first, then the campaign and platform |
When a flight is planned to spend unevenly, such as heavier around a launch, pacing should compare against that planned curve rather than a straight line.
What is an example of budget pacing?
A weekend no-spend
A campaign stops spending on a Friday evening because of a platform issue. Without monitoring, no one notices until Monday, and the campaign misses a full weekend of sales.
With a no-spend alert, the team is notified the same day, confirms the data is current, fixes the issue in the platform, and the campaign is back on pace before the weekend is lost.
Manual pacing checks vs. automated pacing alerts
| Manual checks | Automated alerts | |
|---|---|---|
| How issues are found | Someone logs in and looks | Rules and models flag them |
| Coverage | The campaigns someone remembers to check | Every connected channel |
| Weekends and holidays | Often missed | Monitored |
| Where alerts land | Wherever the person reports it | Where the team already works |
Why does budget pacing matter?
Pacing connects the plan to what happens in the auction. Catching a pacing problem early is usually much cheaper than explaining a missed flight afterward.
- Spend stays on plan. Budgets last through the full flight.
- Fewer missed opportunities. Stalled campaigns are caught before they cost days of results.
- Better decisions about caps. When a strong campaign paces toward its cap early, the team can decide whether to raise it or reallocate.
How does Alli do this?
Alli by PMG's Alerts includes investment guardrails for budget caps, no-spend alerts, and hourly pacing, and Custom Alerts for rules like market-level pacing. Alli Anomaly Detection uses PMG data science models to flag performance outside normal patterns, and alerts arrive in Slack, where the team already works.
Planned spend in Alli Media Planner sits next to actuals, so pacing and variance are visible against the approved plan, and an alert can start a follow-up, like a pacing review, through Alli Generative Workflows.
Explore Alli AlertsBudget pacing FAQ
What does pacing mean in advertising?
Pacing is the rate at which a campaign spends its budget compared with the planned rate for that point in the flight.
How do you calculate budget pacing?
Divide spend to date by the spend expected so far, which is the budget multiplied by the share of the flight that has elapsed. 100% means on pace.
What causes underpacing?
Common causes include bids that are too low, narrow targeting, disapproved ads, broken feeds or landing pages, and platform issues.
Should campaigns always pace evenly?
No. Some flights are planned to spend more around launches, holidays, or peak demand. Pacing should be measured against the planned spend curve.
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