A Customer Buys. Gets a Shipping Confirmation. Then Silence.

That was the entire post-purchase experience for a DTC brand we started working with. Two default Shopify emails. Then nothing until the customer either came back on their own or forgot the brand existed.

Repeat purchase rate: 4%.

The before

The brand was spending heavily on Meta ads to acquire new customers. CPA around $35. Average order value $85. First-purchase margins were thin.

The business model required repeat purchases to be profitable. But the post-purchase funnel was two automated emails that the platform generates out of the box.

No product education after delivery. No review request (so no social proof being generated). No cross-sell or upsell. No referral program. No re-engagement before the customer went cold.

What we changed

We deployed a 12-email post-purchase sequence covering 75 days from first purchase to referral ask.

The key additions that drove results:

Product care email (day 1 post-delivery). Reduced support tickets by 23%. Customers who received care instructions reported higher satisfaction and fewer returns.

Review request (day 7). Generated reviews at a 12% response rate. Those reviews became social proof on product pages and raw material for ad creative.

Cross-sell (day 21). Personalised product recommendations based on purchase history. This single email drove 34% of all repeat purchases in the first 90 days.

Re-engagement (day 45). A check-in email that caught customers before they went cold. 8% click rate. Customers who clicked had a 3x higher likelihood of purchasing again.

The after (90 days)

Repeat purchase rate: 11% (up from 4%).

Revenue attributed to email: grew from 8% to 22% of total revenue.

Customer lifetime value increased 41% on the cohort that received the full sequence vs. the previous cohort with only transactional emails.

Review volume: 340% increase. Those reviews fed back into product pages and ad creative, improving conversion rate and ad performance.

Support tickets: down 23% due to the proactive care guide email.

The math

At $35 CPA and $85 AOV, a 4% repeat rate means you need to acquire roughly 25 customers to get 1 repeat buyer. That single repeat purchase generates $85 in revenue at near-zero acquisition cost.

At 11% repeat rate, you get roughly 1 repeat buyer per 9 acquisitions. The difference in annual revenue from a 1,000-customer base: approximately $5,950 in additional repeat revenue.

Now multiply by 12 months of customer cohorts. The compound effect is significant.

See how the email sequence agent builds these flows automatically.