Case Study

Apparel Brand: 75-175% Incrementality from Q4 Prospecting

2 Min Read

This digitally native, direct-to-consumer apparel and basics brand had everything a holiday retention strategy is built around: a strong brand mission, a genuinely loyal following, and a product that lands perfectly in “easy, thoughtful gift” territory. By most conventional playbooks, that’s exactly the kind of brand that pulls back on prospecting in Q4 — protect the base, don’t waste budget chasing new customers in the most expensive, most competitive quarter of the year.

This brand did the opposite.

The Challenge

Determine whether it made sense to run new-customer acquisition at scale during the most competitive, most expensive quarter of the year — for a brand that could have played it safe and stayed revenue-positive on retention alone.

The Postie Solution

Instead of choosing between retention and acquisition, Postie ran a large prospecting engine in parallel with the brand’s CRM retention campaigns throughout Q4. The strategy leaned into a key insight: during the holidays, this brand’s real competition isn’t its category — it’s every gift-worthy product a shopper might consider. That means the addressable pool of new customers is dramatically larger during Q4 than at any other time of year, even as digital acquisition costs climb in the holiday auction environment.

Multiple test cells were run to isolate true incrementality, comparing performance against the brand’s typical acquisition benchmarks.

Results

75–175% incrementality versus the brand’s typical CPA and conversion performance, across test cells

New customers acquired during Q4 fed directly into the brand’s CRM funnel — compounding the following year’s CRM optimization advantage rather than sitting in a separate silo.

Key takeaway: Q4 is simultaneously the hardest time of year to acquire customers and the easiest — purchase intent is at its peak, and the competitive set expands to anything gift-worthy, not just direct category rivals. The right acquisition-to-retention split comes down to relative market share: brands with a smaller share of their category have far more upside from acquisition (a ceiling that can run 10–20X higher than retention alone), while brands approaching category dominance get more value concentrating on CRM optimization instead.

Postie Features Used
Create Lookalike Audiences
Create Lookalike Audiences
Use industry leading data sets to build lookalike audiences from your best-performing customer segments.
Build Custom Audiences
Build Custom Audiences
Use industry leading data sets to build custom audiences from 1000s of demographic, transactional and behavioral attributes.
Audience Analysis
Identify New Customer Segments
Leverage machine learning to analyze 1st party CRM data and identify undetected customer segments. Mail these segments and use them to model new lookalike audiences.
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