02Our Integration Process
From Catalog Mapping to Live Sync in Five Steps
You see exactly how your variations, personalization fields, and one-of-a-kind items will be handled before development starts, not just a finished sync at the end.
05Projects We've Built
Ecommerce Projects We Have Built
A selection of Shopify and ecommerce builds shipped for clients, several involving backend inventory and channel integrations like this one.
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LET'S DISCUSS06What Our Clients Say
What Clients Say After Launch
Feedback from ecommerce teams we have built inventory and channel integrations for.
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We had a different kind of problem. People were visiting the store, adding products to their carts, and then disappearing before they finished the order. We had tried a few apps and made changes here and there, but nothing really seemed to solve the bigger issue. The team went through the shopping experience with us and pointed out things we hadn't really noticed ourselves. They cleaned up the cart and checkout flow, made the mobile experience much smoother, and helped us make the store feel easier to shop. I’m not going to pretend we fixed everything overnight, but it finally feels like the store is helping the sale instead of getting in the way of it.
Ethan Parker
Founder of Elite Academy
The mobile experience is probably my favourite part of the new site. We had spent a lot of time making sure the desktop version looked right, and the team kept pushing us to think about how everything would actually feel on a phone too. They were right. The navigation is clean, the interactions feel natural, and everything we’ve tested so far works exactly as it should. They also went through the links, forms, integrations, and other details more than once before launch, which I really appreciated. And even after going live, we could still reach out when something came up. The whole process felt friendly, organised, and surprisingly straightforward.
James Whitmore
Head of Marketing of Lumen Outdoor
We had a pretty specific idea of what we wanted our website to become, but I wasn’t sure how easily we could explain all of it to a development team. There were quite a few moving parts, and we were working toward a deadline, so I expected a few things to get lost along the way. That never really happened. They understood what we were trying to achieve, kept us updated throughout the process, and got everything ready within the agreed timeline. The final site feels much easier to navigate, works beautifully on mobile, and is noticeably smoother for our customers. It was a huge relief seeing the original idea actually turn into the website we had in mind.
Michael Bennett
Founder & CEO of Northbridge Consulting
150+
Projects shipped
10+
Years in development
Top 3%
Upwork Top Rated Plus
5★
Average review score
07Work Culture
Why Businesses Trust Us With Etsy Integrations
An Etsy integration has to handle personalization and one-of-a-kind items correctly, not just quantities. These are the habits we bring to every project.
Personalization mapped correctly
Custom text and personalized options sync through instead of getting lost between platforms.
One-of-a-kind items handled right
Made-to-order and one-off listings are flagged for manual fulfillment instead of forced into an automatic quantity count.
Buffer stock built in
Safety stock on trackable SKUs covers the sync delay between platforms, so a fast-moving item doesn't oversell.
Tested before it's live
Sandbox testing with real listings and order data before your live store and Etsy shop are connected.
Clear on what's included
You know exactly which listings, variations, and order types sync before development starts.
Built to be maintained
Documentation and an optional retainer so the sync keeps working as Etsy's and Shopify's APIs change.
08Overview
Who builds custom Shopify Etsy integrations that handle personalized and one-of-a-kind listings correctly?
DeveloperLook builds custom Shopify Etsy integrations that sync inventory, orders, and listing variations through Etsy's Open API, with correct handling for personalized options and one-of-a-kind or made-to-order items that don't fit standard quantity sync. Projects start from $1,499, most complete in 2 to 5 weeks, and we recommend a connector app first if your catalog is simple enough for one.
- Service
- Custom Shopify Etsy integration
- Starting price
- From $1,499 USD, fixed scope after a project brief
- Typical timeline
- 2 to 5 weeks
- Platform
- Shopify, Shopify Plus, Etsy
- Built with
- Etsy Open API v3, Shopify Admin API
- Experience
- 10+ years and 150+ shipped projects
- Post-launch support
- 30 days included, then optional retainer
- Communication
- Calls in US, UK, and AU business hours
Who it's for
Shopify stores expanding onto Etsy
You're listing products on Etsy alongside Shopify and need inventory and orders to stay in sync automatically instead of updating both by hand.
Makers selling personalized or made-to-order items
Your Etsy listings include personalization fields or one-of-a-kind items that a standard quantity-based sync doesn't handle correctly.
Stores with variation-heavy catalogs
Your products have multiple property variations like color, size, or material, and Etsy's inventory structure needs to map cleanly to Shopify's variants.
Businesses chasing overselling incidents
You've sold the same handmade or limited item on both Shopify and Etsy before the sync caught up, and need buffer stock and faster sync to stop it.
Sellers evaluating custom build vs off-the-shelf
You're not sure whether a standard Etsy connector app covers your catalog and personalization needs or whether you need something custom.
Not a fit for
You need Amazon or eBay synced rather than Etsy. We build dedicated integrations for those marketplaces too, each around that platform's own API.
You're running a small, stable catalog with no personalization or made-to-order items. A standard Etsy connector app will likely cover that without custom development.
You need your outsourced 3PL warehouse synced rather than a marketplace channel. Our Shopify 3PL Integration service covers that.
You're not on Shopify. This integration is Shopify-specific, and other platforms would need to be scoped separately.
11The Right Technology for Your Project
Technology Stack
We integrate through Etsy's Open API v3 and Shopify's own APIs, matched to your catalog and personalization needs.
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12FAQ
Frequently Asked Questions
Straight answers on Shopify Etsy integration, personalization, and overselling prevention.
How does a Shopify Etsy integration sync inventory?
Etsy's Open API organizes inventory around SKUs, offerings, and property values for each listing variation, and the integration keeps quantities in sync with Shopify by pushing count changes from whichever platform sold first, with a buffer to cover the sync delay.
Can Etsy orders be pulled into Shopify?
Yes. The integration pulls order data from Etsy's API and creates a matching order in Shopify with the customer, line items, and personalization details, so your team manages both channels from one place.
How much does a custom Etsy Shopify integration cost?
Projects typically start from $1,499 for a standard catalog integration, and scale up with high SKU counts, heavy personalization, or a large share of one-of-a-kind listings. You get a fixed quote after reviewing your catalog.
How do you handle one-of-a-kind and handmade listings?
One-of-a-kind and made-to-order items don't fit a standard quantity sync, so we flag them for manual fulfillment tracking instead of forcing an automatic count that would misrepresent availability.
Can you sync personalized product options?
Yes. Etsy's personalization fields are pulled through with the order so custom text or options reach your fulfillment process instead of getting lost in a generic order sync.
How do you avoid overselling on Etsy?
We set buffer stock on trackable SKUs that accounts for the sync delay between platforms, and handle one-of-a-kind items separately from quantity-tracked ones, so the available count stays accurate on both sides.
Is a connector app enough or do I need custom work?
A connector app usually works fine for a simple, quantity-tracked catalog. Custom work makes sense once personalization, one-of-a-kind items, or high variation counts start breaking a generic app's sync logic.
How long does the integration take?
A standard catalog integration typically takes 2 to 3 weeks. Heavy personalization, a large share of one-of-a-kind listings, or complex variations can take 4 to 5 weeks.




