Vibe coding for CPOs in e-commerce.
An e-commerce CPO owns the funnel from the product page to the confirmation email, and most of it lives inside Shopify or a platform you did not write. The tension is that the experiment you want to run, a bundle builder or a post-purchase upsell, has to sit on top of the platform without ever getting between a shopper and checkout.
What is true about software in e-commerce before you write a prompt.
E-commerce executives have a platform that does most things and a long list of things it does not. Vibe coding fills the list: the returns portal, the wholesale order form, the inventory view, the promotion tool. Every one of them touches orders, customers and money, and every one of them is visible to shoppers or connected to the systems that serve them.
Never store card data yourself
Payment details go through the payment provider and nowhere else. A tool that touches a card number, even briefly, brings PCI obligations the company does not want. The AI will happily build a card form. Do not let it.
Orders and inventory must agree
A tool that updates stock in one place and not the other oversells. A tool that changes an order without telling the platform breaks fulfilment. Integrations need to be two-way and idempotent, or read-only.
Traffic arrives all at once
A promotion tool or a returns page that worked in testing will be hit by thousands on launch day or Black Friday. Hosting, caching and rate limits are part of the build, not an afterthought.
Customer data is personal data
Names, addresses, order history and email. Privacy law applies, deletion requests must be honoured, and marketing consent is a record you have to keep.
What a CPO in e-commerce builds first.
01The bundle or configurator page
The product experience the theme cannot do, built as a separate page that composes the cart through the platform's Storefront API and hands off to the platform's own checkout, so payment never touches your code.
02The post-purchase survey and attribution
A one-question survey on the thank-you page joined to the order and the campaign that brought it, so you know what share of new customers came from the podcast ad, not what the ad platform claims.
03The merchandising rules tool
Buyers and merchandisers ask for a way to pin products, boost a collection or hide out-of-stock sizes without filing a ticket. You build the rules editor and it writes collection order back through a scoped key.
CPOs in every industry tend to build the same four things. The CPO page has that list.
The experiment goes live on a campaign day
You ship the bundle page on the Friday of a paid campaign. It worked for one tester, then two thousand shoppers hit it in an hour, its uncached API calls exhaust the platform's rate limit, and the main storefront starts throwing errors too because they share the same allowance. The cost is a broken checkout during the hour the campaign budget paid for, and a marketing team that will not let product ship again.
The pattern underneath is the one every CPO hits: sales saw the demo. A customer signed. Now the exploratory build with no error handling and no tests has a contract attached, and 'we will rebuild it properly' has no date.
What a safe build in e-commerce usually runs on.
Builds usually sit next to Shopify, BigCommerce or a similar platform, connected through the platform's API with a scoped key, hosted on Vercel or comparable, with Postgres for anything the platform does not store. Payments stay inside the platform or Stripe. Public pages get caching and rate limiting before launch.
What changes for a CPO in e-commerce.
A CTO in your corner draws the line between discovery and production, and helps you cross it on purpose. Prototypes stay cheap and disposable. The ones that are going to live get the ten things production needs before a customer touches them. When engineering takes over, it comes with a written account of what was decided and why. Discovery stays fast. The handover stops hurting.
What CPOs in e-commerce ask.
A CTO who has read e-commerce apps before yours.
Thirty minutes, free, no card. What you built, what is going on with it, whether we can help.
In your corner.