The Shopify Store Setup Playbook for Serious DTC

Launching a new Shopify store as an established brand is a different problem than launching your first store. You already have customers, a brand, an ESP list, an ad account, and revenue you can't afford to interrupt. This is the setup checklist we run.

Catalog

• Decide variant strategy first. Variants drive PDP, search, and ads.
• Set up metafields for everything that's not a default field: ingredients, materials, B2B price tiers, certifications.
• Use product taxonomy properly so Google Shopping and AI surfaces categorize you correctly.

Theme

• Pick an Online Store 2.0 theme. Section everything so marketing can ship pages without devs.
• Build a real PDP, not the demo PDP. Reviews, size guide, badges, sticky ATC, bundle picker.
• Performance budget: LCP < 2.5s on mobile 4G.

Payments

• Shopify Payments + Shop Pay (3–5% conversion lift on returning customers).
• Local methods per market: OXXO/SPEI in MX, iDEAL in NL, Konbini in JP.
• Card vaulting for subscriptions.

Shipping & tax

• Real rate calculator (Shippo, EasyPost, or carrier-direct).
• Tax: Avalara, TaxJar, or Shopify Tax depending on jurisdictions.
• Threshold-based free shipping configured in Shopify, not in an app.

Analytics & pixels

• GA4 with proper ecommerce events.
• Meta CAPI server-side. Klaviyo events. TikTok if relevant.
• Build a single source of truth — pick GA4 or your warehouse, decide which one wins.

Day-one integrations

• Klaviyo (or your ESP) with full event coverage from day one.
• Reviews (Junip, Okendo, or Yotpo).
• Helpdesk (Gorgias).
• 3PL/ERP if you ship volume.

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As of early 2026, the baseline for a "serious" Shopify setup has shifted from simple aesthetic configuration to deep infrastructure readiness. The most critical deadline for established brands is August 28, 2025, which marked the final deprecation of Shopify Scripts. All logic for discounts, shipping rules, and payment customizations must now be handled via Shopify Functions. These Functions offer a significant performance advantage as they execute on Shopify's global infrastructure rather than through external servers, contributing to record-breaking GMV milestones seen in the first quarter of 2026.

Modern storefronts are increasingly bifurcated between high-performance Hydrogen (Remix) builds for headless flexibility and highly optimized Liquid-based themes utilizing Checkout Extensibility. The latter is no longer optional; brands that haven't migrated their checkout.liquid assets to the new Extensibility framework find themselves unable to leverage the latest AI-driven product discovery features and one-click post-purchase extensions. Furthermore, with the rise of agentic commerce, technical setups must now account for Model Context Protocol (MCP) standards, ensuring that catalog data is structured not just for human shoppers, but for the autonomous purchasing agents increasingly common in the 2026 retail ecosystem.

Frequently asked questions

What happened to Shopify Scripts for store setup?

Shopify Scripts were officially deprecated on August 28, 2025. Brands must now use Shopify Functions to handle complex logic for discounts, shipping, and payment methods. Unlike Scripts, Functions are written in languages like Rust or AssemblyScript and executed directly on Shopify's infrastructure, ensuring higher performance during peak traffic periods like Black Friday or major product drops.

Why is Checkout Extensibility required for new setups?

Checkout Extensibility is the modern, app-based way to customize the Shopify checkout without modifying the underlying code (checkout.liquid). It is mandatory for brands wanting to use features like Checkout UI extensions, post-purchase upsells, and tailored branding that remains upgradeable. For Plus merchants, this is the only supported way to customize the checkout experience in 2026.

What are the primary use cases for Shopify Functions?

Shopify Functions allow developers to write custom server-side logic that Shopify executes. Common use cases include 'Buy X, Get Y' discounts with complex conditions, hiding specific payment methods based on customer tags, or calculating custom shipping rates based on product metafields. They are more secure and faster than the legacy Ruby-based scripts.

Which third-party integrations are considered 'essential' today?

For high-growth DTC brands, the essential integrations include a robust ESP like Klaviyo, a customer service platform like Gorgias, and a modern reviews platform like Okendo. Crucially, in 2026, brands should also integrate advanced analytics via server-side GTM or Meta's Conversions API (CAPI) to mitigate the impact of signal loss on ad platforms.

Further reading

• Shopify Checkout Extensibility Documentation