What D2C brands are missing with email and SMS automations

We audit a lot of Klaviyo accounts. The pattern is so consistent it has become a running joke in the office: a welcome series of three emails written when the brand launched, an abandoned cart flow that sends once and gives up, a post-purchase flow that says thank you and nothing else, and a weekly newsletter that goes to everyone, about everything. Then the founder tells us email "does about 20% of revenue" and asks what we could possibly add.

Quite a lot, as it happens. July is when we have this conversation, because whatever is built by September decides how expensive Q4 is going to be.

Why this is the cheapest lever you have

Every euro of paid media buys a first order. Whether the brand makes money depends on the second one, and the second order is a retention problem, not an acquisition problem. In the accounts we run, the brands with the best payback are not the ones with the lowest CPA. They are the ones whose customers come back within 60 days without being paid to. Email and SMS are how that happens, and unlike ads, the marginal cost of a well-timed message is close to zero.

The eight automations most brands are missing

1. A welcome flow that sells, sequenced by behaviour. Not three emails on a timer. Five to seven messages that branch: someone who browsed a category gets that category; someone who clicked a discount gets the offer with a deadline; someone who did nothing gets the brand's best argument, once. The 2022 version is leaving a third of first orders on the table, and it still says "we just launched".

2. Browse abandonment, with a brain. Most brands only chase the cart. The bigger pool is people who looked at a product twice and left. One message, twelve hours later, with the product and one reason to believe. Suppressed if they bought. Obvious, and absent from most accounts.

3. Abandoned cart across two channels. Email at one hour, SMS at twenty-four if the cart is above a threshold, email at seventy-two with the objection handled. Three touches, not one. The third one alone typically recovers as much as the first.

4. A post-purchase flow that earns the second order. How to use it, what to pair it with, a review request timed to delivery, and the cross-sell that matches what they bought. This is the flow that moves repeat rate, and it is the one usually reduced to a thank-you note.

5. Replenishment, timed to the product. If you sell anything consumable, you know the average time to run out. The message goes out four days before, with one-click reorder. Brands that do this well see it become their highest-ROI flow within a quarter.

6. Winback, before they are gone. Not at day 180, when the customer has forgotten you. At day 45 past their expected reorder, with a reason to return that is not just a discount. Discounts train customers to wait.

7. VIP treatment for the top 10%. Your best customers are worth ten times your median. Early access, a real thank-you, a person to reply to. They hear from you differently, or they hear from you like everyone else and quietly leave.

8. A sunset flow. Unengaged subscribers hurt deliverability for everyone. Two attempts to re-engage, then out of the sends. Your open rates rise, your inbox placement improves, and the people who stay are the ones who matter.

SMS is not email with fewer characters

Two rules. It goes to people who asked for it, about things that need a phone: a cart about to expire, a delivery, a drop with a real deadline, a replenishment reminder. And it is measured on its own margin, because at €0.06 a message a lazy SMS strategy costs more than it returns. Used correctly it is the highest-intent channel you own. Used as a newsletter it is a fast way to lose the opt-in you spent money earning, and to become the brand people bring up when they complain about SMS at dinner.

How to prioritise before Q4

Do not build all eight in a month. The order that pays fastest in our experience: abandoned cart across channels, then post-purchase, then browse abandonment, then the welcome rebuild. Replenishment if the product allows it. Winback, VIP and sunset once the first four are live and measured.

Measured is the word. Every flow gets a holdout group, and revenue is credited on incremental orders, not on "last email clicked". If your CRM tool's dashboard is your only source of truth, you are being told what it wants you to believe. We wrote about that habit in the ABC of acquisition, and it applies to retention twice as hard.

Build the four, measure them honestly, and Q4 gets cheaper. That is the whole pitch, and we will show you the gap in your own account in half an hour if you want to see the number.