← Who I Help

Stop losing sales to broken store customizations

You built a store that sells, but off-the-shelf apps do not cover your exact workflow. You have tried using AI to build custom inventory syncs, abandoned cart sequences, and shipping calculators — and they almost work. We finish the last 10% so your store runs smoothly and you stop losing orders to broken automations.

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Sound familiar?

“My Shopify variant sync breaks every time I add a new color or size option to a product.”

AI-generated code handles simple product structures but falls apart with complex variant matrices — especially when you have options that depend on each other, like size-specific colors or bundle combinations. We fix the variant logic so adding new options just works, without corrupting your existing inventory counts.

“I built an abandoned cart email flow with ChatGPT but it keeps firing for orders that were already completed.”

Cart recovery logic needs to track order state transitions precisely — pending, abandoned, recovered, completed. AI code often checks cart status at a single point in time and misses webhook events that update it. We wire up proper event handling so your recovery emails only reach genuinely abandoned carts.

“My inventory counts go negative when the same item sells on Shopify and Etsy within seconds of each other.”

Multi-channel inventory sync is a race condition problem that AI tools almost never get right. When two platforms decrement stock simultaneously, you end up overselling. We implement proper locking and conflict resolution so your inventory stays accurate across every sales channel.

“I tried to build a custom shipping calculator but it returns wrong rates for international orders.”

Shipping APIs return different rate structures depending on origin country, package dimensions, customs declarations, and carrier-specific rules. AI-generated code usually hard-codes one carrier's format and breaks on edge cases like oversized packages or restricted destinations. We normalize the carrier responses and handle the edge cases your customers actually hit.

What that looks like

Built with Cursor

A real-time inventory sync between Shopify, Amazon, and a wholesale spreadsheet that updates stock counts every 15 minutes

The sync works for the first run but creates duplicate SKU entries on subsequent syncs because the matching logic cannot handle Amazon's ASIN-to-SKU mapping, and the spreadsheet parser breaks on rows with special characters in product names.

Built with Bolt

A custom order tracking page that pulls shipment status from multiple carriers and displays it in the store's branding

The tracking page shows status for DHL orders but returns 'shipment not found' for USPS and DPD because each carrier API uses a different authentication method, and the status mapping between carriers is inconsistent.

Built with ChatGPT

A dynamic bundle discount calculator that automatically adjusts pricing when customers combine specific products

The calculator applies the discount correctly for two-item bundles but miscalculates when a customer adds a third qualifying product, and it does not account for items already on sale — resulting in stacking discounts that eat into margins.

What I handle

The work that AI tools start but can't finish.

Multi-channel inventory sync across Shopify, Amazon, and Etsy
Custom abandoned cart recovery flows with conditional logic
Shipping rate calculators with multi-carrier support
Product variant management for complex option sets
Automated order routing to different fulfillment centers
Customer loyalty point systems tied to purchase history
Wholesale pricing portals with tiered discount logic
Returns and exchange automation workflows

Fixed pricing

Most e-commerce sellers projects fit the Integration (€99). No custom quotes, no surprises.

Integration €99

Connect a payment provider, third-party API, or external service to your existing app.

Feature €199

Add a complete feature — authentication, database, dashboards, or user-facing functionality.

Micro-SaaS €399

End-to-end build of a small product — from AI-generated starting point to production-ready.

5 years Engineering partner,
ArjanCodes
<24h First response

Questions e-commerce sellers ask

Do you work directly in my Shopify or WooCommerce store?

Yes. We work in your existing store environment — whether that means editing your Shopify theme code, building a custom app in your Partner dashboard, or modifying your WooCommerce plugin files. No migration, no platform changes.

I sell on multiple platforms — can you sync inventory across all of them?

That is one of our most common e-commerce projects. We build sync logic that keeps stock counts accurate across Shopify, Amazon, Etsy, eBay, or any platform with an API — including conflict resolution for simultaneous sales.

Will my store go down while you work on it?

No. We work on a development copy or staging environment first, test everything thoroughly, and only push changes to your live store when they are verified. Your customers never see broken code.

I already have a Shopify app that mostly works but has a few bugs — can you just fix those?

That is exactly what the Integration tier is for. At €99, we take your existing code, diagnose the specific issues, and fix them — no rebuilding from scratch, no upselling you into a bigger engagement.

Tell me what you built

No commitment, no jargon. Just describe what you have and what you need. I'll tell you exactly what it takes to ship it.

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