Partnership connects AI-driven global carrier execution with real-time inventory intelligence across 350+ carriers and 4,000+ delivery services.
OneStock is delighted to announce Metapack, a ShipStation Global® brand and leader in ecommerce delivery management, as a strategic partner for delivery management. This partnership connects OneStock’s AI-driven inventory orchestration with Metapack’s global carrier network, giving enterprise retailers a single stack from order placement through to carrier selection, label generation, and branded returns.
Bringing together OneStock’s unified view of inventory, sourcing intelligence and customer promise, with Metapack’s carrier network, dynamic delivery options and AI-powered delivery analytics tools, this partnership enables retailers to make promises at checkout knowing that they can be met in execution.
Delivery Promise Grounded in Operational Reality
“Metapack’s strength has always been its ability to give enterprise retailers access to the world’s most extensive carrier network through a single integration,” says Mark Honeyben, SVP & Managing Director of Europe at ShipStation Global. “This partnership with OneStock adds advanced technical capabilities that ensure every delivery promise is grounded in operational reality. Together, we’re giving retailers the confidence that what they promise at the Buy button is a promise they can actually keep at the front door.”
Metapack processes more than a billion shipments annually through its network of 350+ carriers and 4,000+ delivery services, with AI-backed intelligence that helps retailers predict delivery exceptions and optimize carrier performance in real time. It is part of ShipStation Global, which serves more than 3 million customers and moves over 3 billion shipments per year. It is therefore an ideal complement to the OneStock platform which supports highly complex retail environments through AI-powered configuration. It enables business users to react rapidly to changing situations, while also offering full product extensibility to support any commerce scenario.
How It Works
The combined stack covers every stage of the fulfilment journey, including:
- Checkout: Real-time, location-aware delivery options backed by live inventory data, giving shoppers ETAs they can rely on.
- Orchestration: OneStock routes each order to the optimal fulfillment source – whether that’s a store, distribution centre, or vendor – minimizing split shipments and shipping costs.
- Execution: Metapack automates carrier selection from its network of 350+ carriers, handles label generation, and ensures compliance across all markets.
- Returns: A branded returns journey that integrates Metapack’s returns portal with OneStock’s restocking logic, accelerating inventory recovery and building customer loyalty.
Measurable Impact for Retailers
Retailers using the joint stack can expect:
- 10%+ increase in conversion rates, driven by transparent, reliable delivery choices at checkout.
- From 20 to over 50% of online orders fulfilled via existing store networks, reducing shipping costs by up to 40%.
- Up to 20-30% increase in turnover driven by unified stock and surfacing store-level inventory to online customers.
- 40-77% fewer WISMO calls related to stock availability queries, delivery uncertainty and visibility, or order cancellations
“The Metapack and OneStock solutions ensure that operational reality finally matches the customer’s expectation. This is about ensuring that every promise made at the Buy button is a promise kept at the front door,” says Romulus Grigoras, CEO & Co-Founder, OneStock.
The partnership was showcased at OneStock Connect 2026, OneStock’s flagship annual summit, which took place earlier this month. Metapack sponsored the event, which brings together 150+ retail leaders, technical partners, and industry professionals from across Europe and the US each year.
About Metapack
Metapack is a leading intelligent delivery management platform for enterprise retailers and 3PLs, providing access to 350+ carriers and 4,000+ delivery services through a single integration. Serving the top UK and EU retailers, Metapack handles more than a billion shipments annually. Metapack is part of ShipStation Global®, the intelligent logistics platform that serves more than 3 million customers and moves over 3 billion shipments per year. Learn more at metapack.com.
