Customer promise
An order is a promise made, make sure you keep every one
Make ambitious delivery promises to your customers, knowing that you can keep them. Show delivery promises on category and product pages as well as checkout and keep these accurate to the second to build and maintain customer trust.
Keeping promises matters
Even the best product offer is undermined by missing or inaccurate availability and delivery information. Give customers access to the information they need to make a purchase, and watch conversion rates soar
Precision builds trust
Conversion rates rise when shoppers see a variety of fulfillment options and precise delivery dates on both the product page and at checkout. Conversely, and particularly in competitive or time-critical markets, vague, absent or unimpressive delivery options will cause customer to bounce, potentially to a competitor.
Averages are average
In complex networks with distribution centers, national and regional hubs and local branches, calculations based on static historical data are rarely accurate or compelling enough. The best promises reflect real inventory levels at each node and use up-to-date schedule and capacity information to make commitments that convert.
Poor communication erodes trust
Once the order is placed, keeping the customer informed maintains trust, particularly if there’s a delay. Centralizing all order information enables proactive monitoring to minimize delays and provides the transparency which significantly reduces WISMO inquiries.
promise calls per second.
<250ms response time
for promise calls
How it works
The fundamentals of a promise you intend to keep
Real-time delivery promise calculation
OneStock exposes accurate delivery options as early as product pages, calculating promises in milliseconds using unified inventory, carrier routes, fulfillment capacity, and cut-off times. Merchants can display trusted delivery dates and costs during browsing and then refine commitments at checkout, reducing cart abandonment. Promises consider multi-leg routes, express delivery eligibility, and carbon footprint for sustainability-conscious customers.
The promise-driven 0rder
Once a delivery promise is made, OneStock orchestrates orders specifically to meet that commitment. The platform continuously evaluates the promise as a primary constraint, intelligently routing orders based on proximity, stock availability, carrier performance and handling capacity. Sequential and competitive allocation strategies ensure optimal fulfillment while protecting the customer commitment made at checkout.
Continuous promise monitoring
OneStock doesn’t stop after the order is placed, it calculates critical milestones including orchestration deadlines, carrier pickup times, and delivery windows and if delays threaten the promise the system raises alerts and recalculates delivery options, enabling proactive customer communication. This monitoring ensures operational reality matches initial commitments throughout execution.
Capacity-aware promise engine
Accurate promises require understanding of real-world constraints. OneStock manages handling capacity and carrier pickup capacity by fulfillment location and promises account for preparation times, opening schedules, and peak volumes. The platform prevents overpromising by consuming capacity for future stock allocations and maintaining realistic service levels.
Flexible delivery options
OneStock supports diverse delivery scenarios including standard shipping, express delivery, same-day fulfillment and ultra-fast two-hour delivery from stores. Retailers can configure carrier priorities, delivery calendars, cost-based rules, and service-level trade-offs. The delivery promise module balances speed, cost, margin, and sustainability to match business objectives.
Unified post-purchase visibility
Customer service agents can access complete order lifecycle information through OneStock, including promise information, fulfillment status and real-time alerts. This consolidated view enables fast issue resolution, proactive customer communication, and order modifications while maintaining promise accuracy. Integration with third-party CS platforms ensures seamless omnichannel support.
The OneStock Advantage
Why global merchants entrust their customer promises to OneStock
Trust through early promise accuracy
OneStock enables retailers to display delivery promises on category and product pages using accurate real-time calculations. This early transparency increases conversion by reducing delivery anxiety, a key reason for cart abandonment. Unlike legacy systems that provide vague estimates, OneStock delivers precise dates and costs in milliseconds, accessible via API or MCP server for consistent messaging across all your sales channels. Customers make confident purchase decisions knowing exactly when products will arrive.
Operational execution aligned to commitment
While many systems treat order orchestration and delivery promises separately, OneStock unifies them into a single promise-driven engine. Every fulfillment decision is continuously evaluated against the initial customer commitment. The platform uses over 200 configurable business rules to optimize orchestration across thousands of permutations in milliseconds, balancing all factors. This ensures retailers don’t just make bold promises—they consistently keep them.
Proactive promise protection
OneStock’s continuous monitoring separates it from traditional OMS platforms. The system calculates and tracks critical milestones throughout the order lifecycle, including orchestration deadlines and carrier pickup windows. When delays threaten commitments, OneStock automatically raises alerts and recalculates delivery promises, enabling proactive customer communication before issues escalate. This monitoring capability reduces WISMO inquiries, prevents negative reviews, and maintains brand trust even when disruptions occur.
Enterprise scale
OneStock processes delivery promise calculations at enterprise scale. For example, JD Sports handles 1,400 promise calls per second with response times under 250 milliseconds.
OneStock is built on Google Cloud Platform with 99.99% availability across 25+ countries, the platform combines speed with reliability for global retailers. The architecture supports complex scenarios including future inventory allocation, order splitting, cross-border fulfillment, and marketplace expansion with no performance degradation. This scalability ensures accurate promises during peak traffic where weaker systems slow or fail.
See how leading retailers are transforming their operations with OneStock
Petit Bateau
Longchamp
Mano Mano
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