Custom functionality
Quoting flows, gated catalogs, unusual bundles, B2B rules.
Extend
Custom Shopify development for unique business needs
When a theme setting or public app is not enough, we build the functionality into Shopify — APIs, integrations, workflows and Functions that match how your operations actually run.
Business ruleWritten first
App vs customHonest call
Shopify FunctionsWhen checkout must stay native
HandoverYour team can operate it
Built into Shopify, not a spreadsheet
What we build
Functionality that belongs in the store
We only list the work ElvoApps actually delivers. If a request needs a stack we do not support, we will say so.
Shopify APIs
Admin, Storefront and webhooks to keep Shopify in sync.
Third-party integrations
ERP, 3PL, PIM, email — with a clear source of truth.
Custom workflows
Order routing, tagging, fulfilment, post-purchase.
Automation
Repeatable ops out of manual admin, with failure states you can see.
Shopify Functions
Discount, delivery and cart customizations, checkout stays native.
App integrations
ElvoApps products or a private app, without conflicting scripts.
Maintainable code
Documented, theme-aware — not a freelancer leftover.
Performance-aware
No extra storefront libraries unless they earn their weight.
How we decide
Build it, buy an app, or change the process
Custom code is expensive to own. We will recommend an existing app or an operations change when that is the better answer.
Discovery first
We write down the business rule before we write Liquid, JavaScript or a Function.
Rule → option → build
Shopify-native where possible
Checkout extensibility and Functions beat brittle storefront hacks.
FunctionsCheckout
Apps as products sit next door
If an ElvoApps app covers it, we will say that before anyone writes custom logic. See the catalog.
CatalogPrivateCustom
Handover included
Your team should understand what was built and how to operate it — then keep us as the partner if you want.
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Questions
Custom development FAQs
ElvoApps builds and maintains its own Shopify apps, and we build custom/private functionality for merchants. A fully new public app for a third party is a different engagement and is scoped separately.
Yes. Most custom work is added to a live theme with a preview and a rollback plan. We avoid drive-by edits in production.
Start with a project brief on /start. If an existing ElvoApps app or a carefully chosen public app covers it, we will say that before anyone writes a line of custom logic.
No. Unusual rules show up in niche catalogs too. We scope to the rule, not to the vanity of a custom build.
Have a Shopify problem a theme cannot solve?
Describe the workflow, the tools involved and what “done” looks like. We will tell you whether to build, integrate or simplify.