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AchillesAI Blog

Practical guides on cart recovery, email automation and AI for ecommerce.

The same abandoned cart turned into three different emails, one for each customer, next to a checklist of things to verify before sending
Latest article

AI in Email Marketing: What It Really Does in 2026, and What Is Still Hype

AI & data · by Angelo Doni · 2026-10-10 · 9 min read

Which email marketing tasks an AI model does well today, how to check that they really work, and which decisions must stay with the store. Includes a table of checks and six questions to ask any vendor.

Sequence of three abandoned cart emails where only the third contains a personal discount code with an expiry date
Cart recovery · by Angelo Doni · 2026-10-10 · 7 min read

Abandoned Cart Email Discounts: Which Incentives Work Best, and When They Teach Customers to Wait

Explains why a discount in the first abandoned cart email trains shoppers to abandon on purpose and wait for it, and which incentives to try first. Shows when a discount makes sense and how to set up codes that don't spread or eat into your margin.

Three abandoned cart email previews side by side, labeled reminder, one more reason and last chance
Cart recovery · by Angelo Doni · 2026-10-10 · 9 min read

Abandoned Cart Email Examples: 12 Annotated Emails, Subject Lines and a Template

Twelve abandoned cart emails written for generic stores, organized by position in the sequence and by type of abandonment, each with a note on why it works. Plus twelve subject lines grouped by tactic, a template to copy and the mistakes to avoid.

Smartphone showing a cart reminder text message next to an inbox with an email scheduled a few hours later
WhatsApp & SMS · by Angelo Doni · 2026-10-10 · 8 min read

Abandoned cart text messages: SMS and WhatsApp, rules and timing

Explains which text channel fits an online store (SMS in the US, WhatsApp in Europe and Latin America), how WhatsApp templates, the 24-hour window and costs work, and what consent each channel requires. Shows how to add a single text message to an abandoned cart flow without overlapping the emails.

Two emails side by side: an order confirmation on the left, a cart reminder with the marketing consent box ticked on the right
Consent & rules · by Giorgio Terenziani · 2026-10-10 · 5 min read

Are abandoned cart emails transactional? Consent, GDPR and what changes with WhatsApp

Explains why an abandoned cart reminder is a marketing message and not a transactional one, and which legal basis you need in the EU and the US. Shows how to collect and respect consent across the Shopify checkout, Klaviyo flows and WhatsApp.

Four-week calendar leading up to Black Friday: waitlist, sending domain, segments and flows, promotion week
Email strategy · by Giorgio Terenziani · 2026-10-10 · 8 min read

Black Friday emails: a four-week plan, from the waitlist to the last 48 hours

How to plan your Black Friday 2026 emails: waitlist, a sending domain ready for volume, segments, updated flows and the send sequence through Cyber Monday.

Three Klaviyo flows side by side for abandoned checkout, abandoned cart and viewed product, each with its trigger, delays and emails
Klaviyo & flows · by Giorgio Terenziani · 2026-10-10 · 8 min read

Klaviyo Abandoned Cart Flow: Checkout, Cart and Viewed Product, Step by Step

How to build the three recovery flows for a Shopify store in Klaviyo: triggers, filters, delays, Smart Sending and the number of emails. Also covers how to test them without emailing real customers and what to check when a flow doesn't send.

Diagram of a Klaviyo flow connected to a Shopify store, next to a table of monthly costs by number of profiles
Klaviyo & flows · by Giorgio Terenziani · 2026-10-10 · 8 min read

What is Klaviyo, how it works and what it really costs for a Shopify store

Explains what Klaviyo is, how it connects to Shopify and which flows to set up first. Lists the official Klaviyo pricing by profile tier as of October 2026, plus the cost items that never show up on the price list.

Timeline of an abandoned cart sequence: first message within one hour, second at 24 hours, third at 48-72 hours
Cart recovery · by Angelo Doni · 2026-10-10 · 6 min read

When to Send Abandoned Cart Emails: Timing, Sequence and Rules That Work

The right timing for recovery emails depends on whether the shopper abandoned checkout, a cart or just a product page. Here is the full sequence, what changes when you add text messages, and three rules that prevent the most common mistakes.

Diagram of an abandoned cart recovery system with automated emails and a chart of recovered sales
Cart recovery · by Angelo Doni · 2026-06-13 · 4 min read

Abandoned Cart Recovery: The Complete 2026 Guide

A complete guide to abandoned cart recovery: data, causes, emails and automations to win back sales. Practical examples and 2026 strategies.