The sellers who have their best BFCM are not the ones who react fastest when November arrives. They are the ones who made decisions in September, when there was still time to make them carefully.

September is the last month before the holiday season begins to create real pressure. October brings Big Deal Days and rising CPCs. November is BFCM. By the time those arrive, your strategy should already be configured, tested, and running.

Here is exactly what to do in September, and why each item matters before Q4 traffic arrives.

Step 1: Audit your negatives before the volume spike

Negative keywords are the highest-leverage thing you can fix in September. Here is why the timing matters: the traffic volume during BFCM is dramatically higher than normal traffic. If you have keyword waste in your campaigns right now, that same waste will scale proportionally when volume spikes in November.

A term that costs you $15/day in September might cost you $80/day during BFCM when impressions multiply. Cleaning it up now prevents that scaling.

What to audit:

For a full walkthrough of the negative keyword process, see our guide to finding and adding Amazon negative keywords.

Step 2: Revisit your dayparting rules for holiday traffic patterns

Your dayparting schedule was probably built on your historical traffic data. Holiday traffic does not follow the same patterns. Before BFCM, review your dayparting rules and think about what needs to change.

A few specific things to check:

You do not need to remove all suppression, but review the hours you are cutting and confirm they are still the right call with holiday buyer behavior in mind.

Step 3: Configure your Q4 budget rules

Q4 brings higher traffic, which means your current daily budget caps will exhaust earlier in the day. A campaign that runs smoothly at your September cap may start going dark by 2 PM in November.

In September, set up budget rules that will activate automatically as Q4 traffic increases. Specifically:

The goal is not to spend more in September. It is to have the rules in place so the spend increase happens automatically when the volume is actually there to support it.

Step 4: Build your BFCM event rule now

This is the item most sellers put off until October, and then October is suddenly too short to do it carefully. Build your BFCM event rule in September while you can be deliberate about it.

A standard BFCM event rule structure:

Build the rule in September, even if it will not activate until November. Having it configured and sitting in your account means you can review it in October with fresh eyes, adjust if needed, and go into the event with confidence.

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September is the right time to start your trial.

14-day free trial, no credit card required. Get your rules configured before Big Deal Days hits in October.

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Step 5: Enable spend alerts before the volume increases

Spend alerts watch your campaigns for abnormal activity: budget spikes, unexpected pauses, ACoS drift, and unusual impression swings. They are particularly valuable in Q4 because the high-traffic environment makes anomalies harder to catch manually.

Enable spend alerts in September, while traffic is still at a normal level, so you can calibrate what normal looks like. When November arrives and volume spikes, alerts will fire on actual anomalies rather than on expected seasonal patterns.

Alerts are included free on every Off Hours plan. If you are not running them, turn them on before October. They are a zero-cost insurance policy on your Q4 campaigns.

The September checklist

None of these tasks take more than a few hours combined. The reason to do them in September is that if something needs adjustment, you have time. The same tasks attempted in October or November carry more risk because there is less margin to course-correct.

Frequently asked

When should I start preparing my Amazon ads for the holiday season?
September is the ideal window. It gives you enough time to audit, configure, and test your rules before Big Deal Days in October and BFCM in late November. Waiting until October puts you in tight territory, and November is too late to make significant changes safely.
Should I increase my Amazon ad budgets in September?
September traffic is typically not yet in full holiday mode, so aggressive budget increases in September itself are usually not warranted. What you should do is set up the budget rules that will activate automatically when Q4 volume arrives, so you are not scrambling to adjust manually.
How do I set up a BFCM event rule on Amazon?
With Off Hours, you create an event rule by defining a ramp period before the event, the active peak window covering Black Friday and Cyber Monday, and an automatic restore. The rule applies your chosen budget or bid boosts during those dates and returns everything to baseline when the event ends.
What is the most important thing to fix before BFCM?
Negative keywords. Wasted spend on irrelevant terms compounds significantly during the high-traffic BFCM window. Cleaning up negatives in September, when you have time to be thorough, prevents that waste from scaling into November.