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Extensibility

The perfect balance of speed and flexibility

We’re experts in OMS for commerce so the product already does most of what you need. But for anything else, the extensibility framework has all the flexibility you could need.

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Extend OneStock to meet your specific needs, easily and risk-free

Adapt to your business process

Customize orchestration and business rules: create, modify and deploy bespoke order flows and custom data fields (pre-orders, subscriptions, made-to-order) while preserving OneStock’s core stability and upgradeability.

Innovate faster and autonomously

Let product teams and integrators build and ship features independently using extension points. Reduce time‑to‑market for new shopping experiences and free IT to focus on high‑value initiatives.

Scale with confidence

Grow functionality at your pace: add markets, channels and capabilities without costly migrations. Maintain consistent SLAs and operational continuity as transaction volume increases.

Stay independent, risk-free

Use APIs, webhooks and defined hooks to run business logic on your infrastructure. You keep control of rules and data while OneStock’s core stays locked and upgradeable—no risky core edits required.

I am very pleased with our collaboration with OneStock. Their OMS is highly flexible, and they have tailored their solution to fit our company and needs. The decision to invest further in their technology was, therefore, a natural one. Giuseppe Nicola Ramonda, Head of Marketing.
There were two important things: first, no code, meaning a tool with a very high level of configuration, so we move away from IT and put control back in the hands of the business. The second thing was to implement an end-to-end solution that included the stores, and in which we incorporated the success of the store teams. For me, those are the two key elements of success.
Georges Correia
Chief Supply Chain Officer

The key components of an extensibility framework

A comprehensive framework for enterprise customization

Hooks

Hooks are defined injection points in OneStock that let you run custom business logic without changing core code. They accept controlled inputs, execute isolated logic, and return standard outputs, preserving upgradeability, security and platform stability while enabling runtime customization.

  • UI extensions — add blocks, pages, buttons and tailored data panels directly in OneStock interfaces using the OneStock design system to match operational workflows.
  • Non‑native connector extensions — build adapters to payment providers, carriers , promotion engine and CRM systems for bidirectional data flow and process synchronization.
  • Core extensions — influence promise calculation, unified stock views and fulfilment sourcing through safe, versioned hooks without modifying platform core.
Onestock hooks
Onestock API

APIs — full platform coverage

OneStock provides secure, RESTful APIs with full platform coverage — orders, inventory, returns, promises, payments and reporting. Built for real‑time orchestration, bulk operations and deep integrations, APIs include authentication, rate limits and semantic versioning for stability and upgradeability.

  • Inventory API: read and update stock levels, buffers and virtual pools.
  • Orders API: create, read, update and bulk-manage orders and line items.
  • Returns API: manage return requests, RMA workflows and status updates.
  • Promise API: calculate and adjust Delivery Promise estimates and SLA constraints.
  • Payment API: record payment events, deferred captures, refunds and reconciliation metadata.

Webhooks — event-driven integrations

Push events to your systems in real time. Trigger downstream automation, update third‑party services instantly and reduce integration latency for critical operational events.

  • Event notifications: subscribe to standard and custom webhook topics (e.g., order_state_changed, parcel_state_changed, buffer_import_completed) to receive automatic notifications when business events occur and power near‑real‑time downstream workflows.
  • Security & delivery guarantees: payloads are signed (hash_key), scoped per site, and delivered with retry/backoff policies and idempotency support to ensure safe, reliable processing.
  • Topic-based routing & filtering: subscribe only to the topics you need and route events to specific microservices or connectors for targeted, low-noise integrations.
  • Payload stability & versioning: webhook payloads use JSON schemas and semantic versioning so consumers can parse predictable fields and evolve integrations safely.
Onestock webhook
Data extensibility

Flexible data model & attributes

Add custom attributes to native objects—order, customer, product, store—without source code changes. Extended data flows through UIs, APIs, workflows and reports to enable richer decisioning and faster feature rollout.

  • Custom attributes: add attributes to native objects (order, product, customer, store) without source‑code changes;
  • Order data extensibility
  • Item data extensibility
  • Stock‑location data extensibility

Extensibility Use Cases

Enriched order view for customer service

Add financial and third‑party data to the customer‑service order view for faster triage, payment reconciliation and dispute resolution—reducing handling time and improving customer satsisfaction.

Data-driven fulfilment candidate selection

Use external signals (traffic, weather, carrier KPIs, local stock and loyalty) to score and rank fulfilment candidates. Improve promise accuracy, on‑time performance and routing efficiency.

Non‑native payment connector

Integrate a third‑party payment provider for deferred capture, refunds and reconciliations directly from OneStock. Keep payment events synchronized with order states and reduce manual reconciliation.

Bulk operations for customer service

Enable bulk actions (status updates, cancellations, mass tagging, refunds) across selected orders in the customer‑service app. Reduce repetitive work, accelerate backlogs and increase team throughput.

How Extensibility Works

Define custom requirements

Identify business-specific needs that standard OMS configurations cannot address. Document custom data fields, workflow variations, integration requirements, and UI modifications needed across your organization.

Develop extensions

Use OneStock’s technical enablers to create custom fields, design workflows, build connectors and configure UI extensions.

Test in staging

Deploy extensions to pre-production environments. Validate functionality, performance, and integration points. Use configuration versioning and environment management to ensure changes work correctly before production deployment.

Deploy to production

Promote validated extensions to production using controlled deployment packages. Monitor extension performance through comprehensive troubleshooting tools.

Maintain

Extensions remain compatible with platform upgrades.

Frequently asked questions

OMS extensibility enables retailers to customize order management functionality to meet specific business requirements without modifying core platform code. This matters because it eliminates technical debt, preserves upgradeability, reduces maintenance costs, and accelerates time-to-market for new capabilities while maintaining platform stability and reliability.

OneStock provides safe injection points, APIs, webhooks, and visual workflow tools instead of requiring core code changes. Extensions remain isolated from the core platform, ensuring that OneStock upgrades don’t break customizations. This approach reduces technical debt, simplifies maintenance, and enables business users to configure capabilities without developer resources.

Yes. OneStock’s connector extensibility enables you to build custom integration adapters for ERP, WMS, CRM, payment providers, carriers, tax engines, and promotion systems. Connectors leverage OneStock’s robust API and webhook infrastructure and can be hosted within OneStock’s secure environment or deployed externally based on your requirements.

Extensions built using OneStock’s framework remain compatible with platform upgrades because they use defined extension points rather than modifying core code. OneStock maintains backward compatibility for APIs, webhooks, and extension interfaces. This ensures your customizations continue working after updates without requiring code rewrites or extensive testing.

Many extensions can be configured by business users using visual tools, state diagrams, and no-code configuration interfaces. Complex integrations and custom connectors may require developer resources, but OneStock provides comprehensive documentation, APIs, and a design system that significantly reduce development time compared to traditional custom coding approaches.

Design your own extensions

Based on Onestock extensibility framework

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Keeping Promises
AI-driven distributed order management.
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