How Fulfil's Open API is Transforming eCommerce Operations: Real-World Success Stories

In the fast-paced world of eCommerce, businesses need more than just an ERP system—they need a platform that seamlessly integrates with their unique workflows and tools. With Fulfil's robust open API, users can build on top of the API to connect with the systems they need to optimize their operations.

From automated cartonization to enhanced customer communications, here are some examples of how users are leveraging Fulfil's API to solve real business challenges and drive growth.

New Marketplace and 3PL Connections 

Fulfil has native integrations with many eCommerce sales channels, marketplaces, and 3PLs. For merchants looking to sell on marketplaces or work with 3PLs not currently integrated, Fulfil has a dedicated Channels API and 3PL API. These dedicated APIs make it easier for users or third parties to integrate new channels or 3PLs with Fulfil. 

Springfin has built several integrations with marketplaces and 3PLs to enable merchants to further streamline their order management and inventory management while scaling their operations. 

“Working with the Fulfil API has been really great. What stands out the most for us has been the modern, developer-friendly endpoints and the ability to easily access the full data records. We've worked with a lot of other integrations that limit external access or require excessive configuration; Fulfil makes it seamless.” - Jason Niklas, Springfin

New Carrier Integrations

Fulfil has native carrier integrations with many shipping carriers, along with a Carrier API designed for carriers, technical users, or 3rd parties to develop new carrier integrations to Fulfil. This provides agility at scale when brands expand into new countries and want to integrate with local carriers.   

Magicite developed a new carrier integration for a carrier that wasn’t previously integrated with Fulfil, expanding shipping options and enabling merchants to diversify their carrier mix further.  

New Helpdesk Integrations

Fulfil has existing integrations with helpdesks like Gorgias and Zendesk to surface key information from Fulfil within the helpdesk for customer service teams. While some customer service teams log in to Fulfil, others prefer to work only within their helpdesk of choice. 

A merchant was using a helpdesk that was not integrated with Fulfil, so Springfin built a custom helpdesk integration for them to ensure the customer service team had immediate access to order and fulfillment data without needing to log in to Fulfil. 

“Fulfil comes with a great library of reports and features out of the box. When merchants need a custom integration or feature, we’ve been able to customize Fulfil for their needs. Their technical experts are quick to engage and provide support." - Mani, Executive at Springfin

Advanced Analytics with Parabola

Merchants are using Parabola's Fulfil integration to create sophisticated automated workflows that provide crucial business insights:

Automated Invoice Auditing

Cross-referencing invoices from 3PLs and carriers with Fulfil data to automatically detect overcharges and billing discrepancies, protecting profit margins and ensuring accurate accounting.

Purchase Order Monitoring 

Tracking PO status in Fulfil and triggering automated supplier follow-ups for delayed or missing shipments, maintaining inventory levels and preventing stockouts.

Carrier Performance Tracking

Analyzing carrier data from Fulfil to monitor on-time deliveries and transit times, and identify stale shipments, enabling data-driven decisions about logistics partnerships.

“Our experience working with the Fulfil API and support team has been pretty incredible compared to some of the other ERPs we have to integrate with. What stands out to me is just how robust and flexible their API is. We’ve never had an API-related challenge that we weren’t able to solve.” - Adam Reisfield, Special Projects at Parabola

Real-Time Production Updates with Packwork

Packwork demonstrates how operational data can transform customer relationships. By leveraging real-time information from Fulfil through Shopify Flow actions, brands can automatically notify customers when made-to-order items begin production. Customers receive personalized updates, including who's working on their custom engraved product and expected completion times.

This proactive transparency creates genuine customer delight, transforming what could be an anxious waiting period into an engaging journey that builds brand loyalty and trust.

Product Information Management with NOLO Apps

NOLO Apps created a powerful PIM/PLM integration connecting Airtable with Fulfil, enabling businesses to manage product data more effectively. This integration bridges the gap between creative product development workflows and operational fulfillment, ensuring accurate product information flows seamlessly between systems.

“Fulfil combines inventory, finance and operations - getting orders out on time - beautifully well. This focus, matched with a solid API, has meant we’ve been able to create a deeply integrated operational layer around Fulfil. Where other ERPs make things hard, Fulfil seems to make them simple.” - Oliver Rhodes, Founder of NOLO Apps

Bulk Metafield Management by Magicite

Recognizing the need for efficient product data management, Magicite developed a bulk-edit tool for metafields. This solution allows merchants to update product information at scale, dramatically reducing the time spent on routine data management tasks.

Paccurate Integration

Magicite built an integration with Paccurate's cartonization service, bringing enterprise-level packaging optimization to Fulfil users. This integration automatically calculates the most efficient packaging configurations, reducing shipping costs and improving delivery efficiency.

“I’ve been building on top of Fulfil since 2018, and I absolutely love it. The API is amazing - I can guess what the endpoint is going to be - it’s very predictable. The throughput for volume is flawless - seen 8&9-figure brands hammering against it during BFCM - it’s always been reliable. Fulfil is the best ERP in the eCommerce space. ” - Dax Miller, Founder at Magicite

Automated Cartonization

Codeture developed an intelligent cartonization app that revolutionizes how warehouses select packaging. When a shipment is created in Fulfil, their automation rule triggers a standalone cartonization engine that receives SKU dimensions and available carrier boxes. The app's algorithm analyzes shop configurations—considering factors like maximum weight, box-in-box requirements, and minimum padding needs—to recommend the optimal packaging choice.

This solution helps warehouse staff quickly identify the best box, prevent overshipping, and optimize packaging costs across the operation.

“Our team and our clients value Fulfil’s Open API. Fulfil allows you the flexibility to create custom workflows so you have control over your operations as a growing brand.” - Stefan Vermaas, Founder at Codeture

The Power of API-First Architecture

These success stories highlight a crucial advantage of Fulfil's API-first approach: the ability to adapt and extend functionality based on specific business needs. Whether it's optimizing warehouse operations, enhancing customer communications, or creating sophisticated business intelligence workflows, Fulfil's API provides the foundation for innovation.

While many merchants use Fulfil out of the box, the flexibility to integrate with other tools and custom-built solutions provides businesses with agility and optionality. 

Custom Enhancements Without Custom ERP Headaches 

These examples represent just a fraction of what's possible with Fulfil's API. Whether you're looking to automate routine tasks, integrate with specialized tools, or create entirely new workflows, Fulfil's comprehensive API documentation and developer resources provide the foundation you need.

Ready to explore how Fulfil can transform your operations? Request a Fulfil demo. 

If you’re a third party looking to build an integration with Fulfil, you can connect with our partnerships team to explore collaboration opportunities.