OnBuy Integration for Magento 2

Key Features

Bulk product listing to OnBuy with attribute-set and category mapping driven from a dedicated Magento admin grid

EAN/GTIN-based product matching so listings attach to the correct existing OnBuy catalog node instead of creating duplicates

Automated inventory synchronization via cron deltas and stock observers, keeping OnBuy availability aligned with Magento source stock

Price synchronization from Magento (with per-store-view scope) pushed to OnBuy on change

OnBuy order import as native Magento sales orders so invoicing, shipping and credit memos use your standard workflow

Dispatch and tracking-number push back to OnBuy on shipment creation via a sales_order_shipment observer

Configurable repricing rules with floor/ceiling guardrails to stay competitive without selling below margin

Admin ACL resources so OnBuy configuration, listings and sync logs are permission-gated per admin role

Detailed sync and API logging for every OnBuy Seller API call, with retry handling for transient failures

Cron-driven background processing so bulk operations never block the admin or storefront

System configuration under Stores -> Configuration for API credentials, sync intervals and mapping defaults

Built on Magento service contracts and dependency injection (di.xml) for clean upgrades and testability

Built to order, done for you

No DIY setup — a working app, built, installed and supported by ECOSIRE.

You order

Start with a one-time build price. We scope it with you at kickoff.

We build & install

ECOSIRE builds, configures and installs it on your Magento 2.

Go live + support

You go live in about 2–4 weeks, with a post-launch support window.

About this Product

OnBuy Integration for Magento 2 lets UK merchants list and sell on the OnBuy marketplace directly from their existing Magento catalog, without re-keying products or manually reconciling stock across channels. It is a build-to-order extension: ECOSIRE custom-builds it against the OnBuy Seller API, then installs and configures it on your Magento Open Source or Adobe Commerce instance. There is no instant Adobe Commerce Marketplace download — the module is delivered, deployed and supported by our engineers.

The extension is a standard Magento 2 module under app/code/Ecosire/OnBuyIntegration, wired through di.xml with its own service contracts, a dedicated OnBuy API client, admin ACL resources, system configuration under Stores → Configuration, and cron jobs for unattended sync. A custom admin grid maps Magento attribute sets and categories to OnBuy category and attribute requirements, and matches products to existing OnBuy listings by EAN/GTIN so you list against the correct catalog node rather than creating duplicates.

Once live, inventory and price changes flow automatically: an observer on sales_order_place_after and scheduled cron deltas push availability and pricing to OnBuy, while incoming OnBuy orders are imported as native Magento orders so fulfilment, invoicing and shipping run through your normal workflow. Dispatch and tracking are pushed back to OnBuy on shipment. Optional repricing rules keep you competitive within floor/ceiling bounds you define.

Everything is logged, ACL-gated, and respects multi-store scope. Because we build it for your store, field mappings, repricing logic and edge cases match your real catalog — not a generic template. You get the source, an install on your environment, and a defined support window.

What you get

Custom-built Magento 2 module (Ecosire_OnBuyIntegration) under app/code, compatible with your Magento Open Source or Adobe Commerce version

Installation and configuration on your Magento environment (staging first, then production) by ECOSIRE engineers

OnBuy Seller API credential setup and connection verification against your seller account

Category, attribute and EAN mapping configured against your real catalog structure

Cron and sync interval configuration tuned to your catalog size and order volume

Full module source code committed to your repository, with a README and admin usage notes

Post-deployment smoke test: sample listing, stock/price sync, and a test order round-trip

Defined support window for bug fixes and OnBuy API compatibility adjustments

Who this is for

UK marketplace diversifier

A UK Magento merchant already on Amazon and eBay who wants OnBuy as a lower-fee third channel without hiring an in-house integration developer or re-keying the catalog.

Operations / inventory manager

The person responsible for not overselling. They need OnBuy stock and price to track Magento automatically and OnBuy orders to land in the same fulfilment queue as everything else.

Magento agency or systems integrator

A partner delivering a multichannel build for a client who wants a maintainable, ACL-gated, service-contract-based OnBuy module they can own in the client's repo rather than a black-box SaaS connector.

How OnBuy Integration for Magento 2 Compares

Criterion	ECOSIRE	Custom Build	Competitor
OnBuy listing, stock, price and order sync working out of the box for your store	Included	Partial support	Partial support
Built and installed for you with no in-house Magento dev time	Included	Not included	Not included
EAN/GTIN product matching to existing OnBuy listings	Included	Partial support	Partial support
Repricing rules with floor/ceiling guardrails	Included	Partial support	Partial support
Full source code owned in your repository	Included	Included	Not included
Instant self-service download today	Not included	Not included	Included
Mappings tailored to your exact catalog and OnBuy categories	Included	Included	Not included
Ongoing OnBuy API compatibility maintenance	Partial support	Not included	Partial support

Frequently Asked Questions about OnBuy Integration for Magento 2

Is this an instant download from the Adobe Commerce Marketplace?

No. This is a build-to-order extension. ECOSIRE custom-builds the module against the OnBuy Seller API and your catalog, then installs and configures it on your Magento Open Source or Adobe Commerce instance. You receive the full source in your repository, not a Marketplace package.

How long does delivery take after I order?

Typical lead time is about 2 to 3 weeks from kickoff, depending on your catalog complexity, the OnBuy categories you sell in, and access to your staging environment. After requirements confirmation we build, deploy to staging for your sign-off, then schedule the production install. We give you a firm date once we have reviewed your setup.

What ongoing support and updates are included?

Each build includes a defined support window for bug fixes and for adjustments if OnBuy changes its Seller API. Because the source lives in your repository, your team or any Magento developer can maintain it afterward. Extended support and feature additions are available as a follow-on engagement.

Does it work with both Magento Open Source and Adobe Commerce?

Yes. The module uses standard Magento 2 building blocks (di.xml, service contracts, observers, cron, admin ACL) that exist in both editions. We target your specific version and confirm compatibility before install. Adobe Commerce specifics such as B2B catalogs or shared catalogs are handled if they apply to your store.

How does it avoid overselling across channels?

Inventory is synchronized from Magento source stock to OnBuy on a cron schedule and on stock-changing events such as order placement. You configure the sync interval and, if needed, a stock buffer. All changes are logged. It reduces oversell risk substantially, but no near-real-time integration eliminates it entirely during high-concurrency spikes, which is why buffers and intervals are tunable.