The 27-Point Peak-Season Checklist for E-Commerce

The situation

Most storefronts fail during peak season for the same handful of reasons every year: checkout times out under load, a "sold out" product still accepts orders because inventory sync lagged, and nobody actually tested the mobile checkout flow on a real phone with a real cellular connection instead of office wifi. None of these are exotic failures. They're all things a checklist catches — if anyone runs the checklist.

What we did

We turned our own pre-launch review into a real, public asset instead of an internal Notion doc: the Peak-Season Readiness Checklist, 27 points across 5 sections — performance, checkout, inventory, fulfillment communication, and monitoring. It's the same list every e-commerce build goes through before we hand it to the abandoned-cart-recovery and inventory-sync agents that keep running after launch.

The number

27 — the exact number of checks in the list, not a rounded marketing number. Five sections, twenty-seven binary yes/no items. If you can't check a box, that's a specific, named risk going into your highest-traffic week, not a vague feeling that something might be wrong.

Steal this

The five categories, condensed — the full 27-point version (with the specifics under each one) is free at the link above:

1. Performance under load — page weight, checkout latency, and whether you've actually load-tested checkout, not just the homepage.
2. Checkout integrity — payment retries, timeout handling, and whether a failed payment leaves the cart intact instead of silently emptying it.
3. Inventory accuracy — whether stock counts sync in real time across every channel you sell on, or whether "in stock" is a number someone updates by hand.
4. Fulfillment communication — order confirmation, shipping delay notices, and whether a customer can find order status without emailing support.
5. Monitoring — who gets paged when checkout error rates spike at 2am on the Friday that matters most, and how fast.

What's next

If your storefront is running on a fixed-price plugin stack held together with manual inventory updates, see how we build e-commerce engines that don't lose checkout revenue — or get the full checklist and run it yourself before your next spike.