Shopify Plus Development —
Enterprise Ecommerce, No Limits
Custom checkout extensions, Shopify Functions, B2B wholesale portals, multi-store architecture, and Flow automations. We unlock everything Shopify Plus offers — and build what standard Shopify simply cannot do.
Shopify Plus Features We Build
These capabilities are exclusive to Shopify Plus and require specialist development to implement correctly.
Custom Checkout Extensions
Shopify Plus unlocks Checkout UI Extensions — add upsells, trust badges, custom delivery date pickers, loyalty point displays, and gift message fields directly in the checkout flow. No workarounds. Built with Shopify's official extension API.
Shopify Functions
Replace Shopify's native logic with custom code. Custom discount functions (BOGO, tiered pricing, bundle discounts), custom payment method customisations (hide COD above ₹X), and custom delivery method filters. Runs serverless at the edge — zero latency.
B2B / Wholesale Portal
Native Shopify Plus B2B — company profiles, custom price lists per company, minimum order quantities, net payment terms (Net 30/60/90), and draft orders from the admin. We configure the full B2B setup including customer segmentation and approval flows.
Multi-Store Architecture
Manage multiple Shopify stores (different regions, brands, or languages) from a shared Shopify Plus Organisation account. Shared theme codebase with market-specific overrides, centralised inventory sync, and cross-store reporting.
Shopify Flow Automations
Automate repetitive operations: tag high-value customers, pause marketing for out-of-stock products, send internal alerts on high-risk orders, trigger Klaviyo segments on purchase behaviour, and auto-generate fulfilment tasks. We build and test the full Flow workflow.
Launchpad & Script Editor
Automate flash sales, Black Friday campaigns, and collection launches with Shopify Plus Launchpad — scheduled theme publishing, discount activation, and inventory updates. Script Editor for legacy cart-level discounts where Functions don't yet apply.
Shopify Plus vs Standard Shopify
| Feature | Shopify Plus ✦ | Standard Shopify |
|---|---|---|
| Checkout customisation | Full — Checkout UI Extensions | Minimal — info banner only |
| Custom discount logic | Shopify Functions | Basic codes only |
| B2B / wholesale native | Yes — company profiles, price lists | Not available natively |
| Multi-store management | Organisation account (10 stores) | Single store only |
| API rate limits | 10× higher than standard | Standard limits |
| Dedicated success manager | Yes | No |
| Flow automation | Yes | No |
| Expansion stores | Up to 9 included | Separate subscription each |
| Monthly cost | $2,300/month or revenue-based | $39–$399/month |
| Best for | ₹10Cr+ revenue, enterprise DTC, B2B | Growing DTC brands |
How We Deliver Your Shopify Plus Project
Plus Discovery & Architecture
We audit your current Shopify setup, map required checkout customisations, B2B requirements, and automation needs. We produce a written spec of all Shopify Functions, Checkout Extensions, and Flow automations before writing a line of code.
Checkout Extension Development
Custom Checkout UI Extensions built with React and Shopify's extension API. We design the extension UI in Figma, get sign-off, then develop and test across all checkout steps. Extensions are deployed to Shopify's infrastructure — no performance overhead.
Functions & Logic Development
Shopify Functions written in Rust or JavaScript compiled to WebAssembly. Each Function is tested with a range of scenarios — including edge cases — before deployment. We validate against Shopify's Function API test suite.
B2B Setup & Flow Automation
B2B company profiles configured, price lists mapped, payment terms set up. Shopify Flow automations built and tested end-to-end. We run through every automation trigger to confirm the expected outcome before going live.
Launch, Testing & Handover
Full end-to-end checkout testing across all customer segments (B2C, B2B, wholesale), discount scenarios, and payment methods. Performance audit. Shopify Plus dedicated support relationship documented. 30 days post-launch support included.
Technology & Integrations
What Our Shopify Plus Clients Say
"Sigill built a custom checkout with delivery date picker, gift message, and loyalty points display — all inside the Shopify Plus checkout. It lifted our conversion rate by 1.8% within the first month. The Functions work flawlessly."
"Our B2B wholesale portal on Shopify Plus handles 200+ dealer accounts with custom pricing tiers and Net 30 terms. Sigill configured the whole thing and built the custom theme. Our wholesale team manages it without any developer involvement."
"We run 4 Shopify stores for different regions. Sigill set up the shared theme architecture and built the multi-store Flow automations. Our ops team has saved 15+ hours a week on manual tasks."
Frequently Asked Questions
Shopify Plus is worth it when: (1) you're generating more than ₹8–10Cr/year in ecommerce revenue — the cost is offset by conversion improvements, (2) you need custom checkout logic such as upsells, custom fields, or delivery date pickers, (3) you have a B2B or wholesale channel that needs custom pricing, (4) you need higher API rate limits for integrations, or (5) you're managing multiple stores. For most brands under ₹5Cr revenue, standard Shopify with the right apps is sufficient.
Shopify Functions let you replace Shopify's native discount, payment, and delivery logic with your own custom code. Examples: BOGO discounts with specific product rules, bundle discounts, tiered pricing, hiding COD for orders above a certain value, filtering delivery methods by postcode, and custom B2B pricing. These customisations were previously impossible without Plus.
A Shopify Plus project — custom checkout extension, B2B setup, and Shopify Flow automations — typically costs ₹2,50,000–₹8,00,000 depending on complexity. Checkout UI Extensions are scoped per extension. B2B configuration is scoped based on the number of company profiles and price lists. All projects are fixed-price with no surprises.
Yes — migrating from standard Shopify to Plus does not require a platform migration. Your store data stays in place. What we do is rebuild the checkout with Plus extension capabilities, configure Plus-specific features like B2B, Flow, and Launchpad, and increase the sophistication of your discount and automation logic.
Checkout UI Extensions are React components that Shopify Plus merchants can embed directly in the checkout flow. You can add custom UI blocks at specific checkout steps — order summary, contact information, shipping method, and the thank you page. Examples: upsell offers, delivery date pickers, gift message fields, loyalty point displays, and custom trust badges.
Yes — Shopify Plus includes a native B2B module that supports company accounts, custom price lists, payment terms (Net 30/60/90), draft orders, and quantity rules. We configure the full B2B setup and build any custom theme components needed for the wholesale buying experience.
Yes. We design, build, and test Shopify Flow automations as part of every Plus project. Common flows: auto-tag customers based on purchase behaviour, trigger Klaviyo segment additions, pause ads on out-of-stock products via a webhook to Meta, send internal Slack alerts on high-risk orders, and auto-fulfil digital products.
Shopify Scripts (Ruby, legacy) were the old way to customise checkout on Plus. Shopify Functions (Rust/JS compiled to WASM) are the new standard — faster, more powerful, and supported long-term. Shopify is deprecating Scripts. We build all new Plus projects with Functions, and can migrate existing Script-based customisations to Functions.
Timeline depends on scope. A checkout extension with two to three custom components takes three to four weeks. A full B2B portal setup including theme development and flow automations typically takes six to eight weeks. We provide a detailed project timeline in the proposal before any work starts.
Yes — we offer retainer-based Shopify Plus support covering Function updates when Shopify releases new API versions, checkout extension updates, theme maintenance, performance monitoring, and on-call support for production issues. Our Plus merchants are covered 5 days a week with same-day response on critical issues.
Ready to Unlock Shopify Plus?
Tell us about your checkout requirements, B2B needs, or automation goals. We'll send a proposal within 24 hours.