
Why September Is the Most Important Month of Your Q4
Ecommerce Playbook: Numbers, Struggles & GrowthShow Notes
Black Friday is not won in November. According to CTC data, brands that grow their active customer file by 10% or more this year have a 77% chance of beating last year's BFCM — with a median result of 40% growth. The brands that hold back in September are the ones that underperform in Q4. Topics covered in this episode: Why your active customer file is the single biggest predictor of BFCM performance
The data: 77%, 50%, and 30% — what your customer file growth tells you right now
How CTC defines and measures the active customer file across Shopify brands
Why short-term LTV peaks in the first 30 to 60 days after acquisition
Why that window gets heightened heading into BFCM, not reduced
The case for leaning into acquisition spend now rather than saving it for November
How to measure the incremental impact of your media spend in September vs. BFCM
What incrementality factors are and how CTC has seen them across brands
The step-by-step September playbook: file, scenarios, moments, measurement
Why the fear of pulling revenue forward or confusing your BFCM offer is overblown
Show Notes: Q4 waits for no one. AppLovin is offering $5K ad credit when you spend $5K. Go to applovin.com/ctc to set up your first campaign
Explore the Prophit Engine: https://commonthreadco.com/pages/prophit-engine
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