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eCommerce ﹥ Shopify integrations

CUSTOM SHOPIFY INTEGRATIONS FOR THE SYSTEMS WITH NO APP

Not every system has an app in the Shopify store, and not every app does what you need. We build custom connectors and Shopify apps for the systems your operation actually runs on, and we maintain them after launch.

eCommerce ﹥ Shopify integrations

CUSTOM SHOPIFY INTEGRATIONS FOR THE SYSTEMS WITH NO APP

Not every system has an app in the Shopify store, and not every app does what you need. We build custom connectors and Shopify apps for the systems your operation actually runs on, and we maintain them after launch.

eCommerce ﹥ Shopify integrations

CUSTOM SHOPIFY INTEGRATIONS FOR THE SYSTEMS WITH NO APP

Not every system has an app in the Shopify store, and not every app does what you need. We build custom connectors and Shopify apps for the systems your operation actually runs on, and we maintain them after launch.

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Own it, or rent it

An app is cheaper on day one and a dependency forever. A connector costs more to build and is yours to change. We decide per integration, based on how central it is, how often it changes and what a failure costs. Whatever we build gets logging, retries and an owner, because an invisible integration is the one that breaks.

We build and grow digital platforms for brands that expect their commerce to perform, from fashion and beauty to mobility and consumer electronics. These are some of the companies we work with.

We build and grow digital platforms for brands that expect their commerce to perform, from fashion and beauty to mobility and consumer electronics. These are some of the companies we work with.

We build and grow digital platforms for brands that expect their commerce to perform, from fashion and beauty to mobility and consumer electronics. These are some of the companies we work with.

When custom beats an app

Attendees listening to a talk at a Flatline eCommerce event
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Two colleagues discussing work at their desks

Global disruptor in custom development & end-to-end production partner

WHEN CUSTOM WINS

Custom work makes sense when the app exists but misses the one field you need, when an integration decides revenue and cannot silently fail, when you pay per order for something you could own, or when three apps do the job of one connector.

Family with two young children next to an electric cargo bike in front of a townhouse

When custom beats an app

Attendees listening to a talk at a Flatline eCommerce event
Office entrance with a glass meeting booth
Two colleagues discussing work at their desks

Global disruptor in custom development & end-to-end production partner

WHEN CUSTOM WINS

Custom work makes sense when the app exists but misses the one field you need, when an integration decides revenue and cannot silently fail, when you pay per order for something you could own, or when three apps do the job of one connector.

Family with two young children next to an electric cargo bike in front of a townhouse

When custom beats an app

Attendees listening to a talk at a Flatline eCommerce event
Office entrance with a glass meeting booth
Two colleagues discussing work at their desks

Global disruptor in custom development & end-to-end production partner

WHEN CUSTOM WINS

Custom work makes sense when the app exists but misses the one field you need, when an integration decides revenue and cannot silently fail, when you pay per order for something you could own, or when three apps do the job of one connector.

Family with two young children next to an electric cargo bike in front of a townhouse
OGÉR campaign image of a man in a quilted knit vest and sunglasses on a snowy mountain top

What we build

  • Connectors for systems without an app, or with an app that misses what you need.

  • Custom Shopify apps for your admin, built on the Shopify APIs and webhooks.

  • Checkout and discount logic with checkout extensions and Shopify Functions.

  • Apps for Shopify POS, such as the custom POS apps we built for OGÉR.

  • Order routing and automation, such as the routing rules across three continents for Mystic.

  • Shopify Flow automations for the work your team now does by hand.

Connecting an ERP or WMS is a topic of its own; see ERP integration.

App or custom: how we decide

We start with the App Store, because an existing app is often the cheapest and fastest option. Custom wins when:

  • the app exists but misses the one field or rule you need;

  • the integration decides revenue and may never fail silently;

  • you pay per order or per month for something you could own;

  • three apps do the work of one connector and slow the store down.

For each integration we compare build and running costs over several years, and the risk of depending on a third party.

How we build

  • On the official Shopify APIs and webhooks, never on scraping or workarounds.

  • With retries, logging per message and alerts to a named owner.

  • With a way to reprocess failed messages without a developer.

  • Hosted and secured with access limited to what the integration needs.

  • Documented per flow, field and owner, so another team can take over.

Integrations that touch the storefront are tested for speed, so custom work does not slow the store down.

Maintenance after launch

Shopify releases a new API version every quarter, and the systems on the other side change too. We monitor the integrations we build, update them before an API version expires and adapt them when your processes change. If you prefer to run them yourself, we hand over code and documentation.

F.A.Q.

We’d love to answer all your questions

When is a custom integration better than an app?

When the app misses something essential, when the integration decides revenue, when recurring app costs exceed what a connector costs to build, or when several apps do the work of one connector. In all other cases we advise the app.

Can you customise the Shopify checkout?

Yes, within what Shopify allows. With checkout extensions and Shopify Functions we add fields, blocks, discount, shipping and payment rules. For John Beerens we built dynamic checkout rules with Checkout Blocks. Some changes require Shopify Plus.

Do custom integrations slow down the store?

Not when they are built well. Most integrations run in the background through the APIs and never touch the storefront. Where they do, we test speed before launch. Replacing several apps with one connector often makes the store faster.

What happens when Shopify updates its API?

Shopify releases a new API version every quarter and supports each version for a limited period. We track those versions for the integrations we maintain and update them in time, so nothing stops working.

Can you take over an existing app or connector?

Yes, after a review of the code, hosting and documentation. That review shows what can stay, what needs fixing first and whether a rebuild is cheaper in the long run.

F.A.Q.

We’d love to answer all your questions

When is a custom integration better than an app?

When the app misses something essential, when the integration decides revenue, when recurring app costs exceed what a connector costs to build, or when several apps do the work of one connector. In all other cases we advise the app.

Can you customise the Shopify checkout?

Yes, within what Shopify allows. With checkout extensions and Shopify Functions we add fields, blocks, discount, shipping and payment rules. For John Beerens we built dynamic checkout rules with Checkout Blocks. Some changes require Shopify Plus.

Do custom integrations slow down the store?

Not when they are built well. Most integrations run in the background through the APIs and never touch the storefront. Where they do, we test speed before launch. Replacing several apps with one connector often makes the store faster.

What happens when Shopify updates its API?

Shopify releases a new API version every quarter and supports each version for a limited period. We track those versions for the integrations we maintain and update them in time, so nothing stops working.

Can you take over an existing app or connector?

Yes, after a review of the code, hosting and documentation. That review shows what can stay, what needs fixing first and whether a rebuild is cheaper in the long run.

F.A.Q.

We’d love to answer all your questions

When is a custom integration better than an app?

When the app misses something essential, when the integration decides revenue, when recurring app costs exceed what a connector costs to build, or when several apps do the work of one connector. In all other cases we advise the app.

Can you customise the Shopify checkout?

Yes, within what Shopify allows. With checkout extensions and Shopify Functions we add fields, blocks, discount, shipping and payment rules. For John Beerens we built dynamic checkout rules with Checkout Blocks. Some changes require Shopify Plus.

Do custom integrations slow down the store?

Not when they are built well. Most integrations run in the background through the APIs and never touch the storefront. Where they do, we test speed before launch. Replacing several apps with one connector often makes the store faster.

What happens when Shopify updates its API?

Shopify releases a new API version every quarter and supports each version for a limited period. We track those versions for the integrations we maintain and update them in time, so nothing stops working.

Can you take over an existing app or connector?

Yes, after a review of the code, hosting and documentation. That review shows what can stay, what needs fixing first and whether a rebuild is cheaper in the long run.

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What do they say

4.9 out of 5 · 145 reviews

Google reviews
Clutch reviews
Sortlist reviews
Shopify Partner Directory reviews

What do they say

4.9 out of 5 · 145 reviews

Google reviews
Clutch reviews
Sortlist reviews
Shopify Partner Directory reviews

What do they say

4.9 out of 5 · 145 reviews

Google reviews
Clutch reviews
Sortlist reviews
Shopify Partner Directory reviews

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We’d love to hear about your project.

We’d love to hear about your project.