3PL provider

The Fulfillment Lab (GFS) 3PL Integration

Connect The Fulfillment Lab on the GFS platform to send customer shipments, import tracking, send supplier ASNs, create return RMAs, and reconcile inventory as a cycle count.

See how it works

Overview

The Fulfillment Lab, on the GFS (Global Fulfillment System) platform, is a third-party logistics provider that picks, packs, and ships your orders. Fulfil's native integration sends customer shipments to GFS as orders, imports tracking as GFS ships them, sends supplier shipments as inbound ASNs and imports the receipts, creates and tracks return RMAs, and reconciles GFS's per-warehouse inventory as a cycle count. Fulfil connects to GFS using two sets of credentials — a Store ID and Secret for sending orders, and an API token for reads, ASNs, and webhooks — and maps a single Fulfil warehouse to the GFS warehouse that fulfills from it.

Type: Direct 3PL Integration

Capabilities

Outbound D2C and wholesale customer shipments, with the carrier and tracking number returned per order
Real-time tracking over a GFS webhook, subscribed automatically when you connect, with a scheduled poll as a fallback
Partial shipments, with the remaining items deferred to a new shipment
Bundle products sent as component SKUs rather than the parent bundle SKU
Whole-order cancellation before the order ships
Supplier shipment ASNs, flagged as pallets or boxes, with full and partial receipts
Return RMAs created against the original GFS order, with returned items imported as they're received
Full per-warehouse inventory snapshots imported as a cycle count
Product matching to GFS by SKU using GFS's own product list

Supported Actions

From Fulfil to GFS:

Send assigned customer shipments as orders, with the requested carrier and service
Send draft supplier shipments as inbound ASNs
Send return RMAs for orders being returned
Send order cancellations (applied while the order has not yet shipped)

From GFS to Fulfil:

Receive the carrier and tracking number on fulfilled shipments
Confirm inbound receipts, including partial receipts
Import returned items and quantities as GFS receives them
Import full per-warehouse inventory snapshots as a cycle count

Best For

Hands-off DTC fulfillment: Brands that want GFS to pick, pack, and ship while Fulfil stays the system of record for orders, inventory, and finance
Returns visibility: Operations that need return RMAs and receipts flowing back automatically rather than reconciled by hand
Accurate stock: Teams that want GFS's warehouse counts reconciled into Fulfil as scheduled cycle counts

Setup Instructions

Step 1: Create a GFS Warehouse in Fulfil

Navigate to Inventory & Stock > Locations
Create a warehouse with Warehouse Type set to 3PL and 3PL Source set to The Fulfillment Lab

Step 2: Connect to GFS

You'll need the following from GFS:

Store ID and Store Secret: used to send orders
API Token: used for reads, ASNs, returns, and webhooks
Warehouse Code: the GFS warehouse identifier that fulfills your orders
Navigate to Settings > Integrations and click Setup New Integration
Select The Fulfillment Lab, name the integration, and click Next
Enter your Store ID, Store Secret, and API Token, then click Connect (leave Test mode off for a live account)
Select the Fulfil Warehouse you created, enter the Warehouse Code, and click Save

Connecting subscribes Fulfil to a GFS webhook automatically, so order and tracking updates arrive as they happen.

Step 3: Enable Schedulers

On the warehouse location page, add schedules for each action you want to automate:

Send customer shipments: sends assigned shipments to GFS as orders
Get customer shipment advices: imports the carrier and tracking numbers, marking shipments Done
Send supplier shipments: exports draft supplier shipments to GFS as ASNs
Get inventory receipts: marks supplier shipments received once GFS confirms
Get cycle counts: imports a full inventory snapshot from GFS as a cycle count
Send returns and Get return advices: send return RMAs and import returned items

Select an interval for each schedule and save.

Step 4: Set Up Products

GFS does not accept product records from Fulfil, so there is no Send to 3PL step. Set your products up in GFS first and make sure each product's SKU in GFS matches the SKU in Fulfil. Fulfil looks up each SKU in GFS's product list to match shipments, ASNs, receipts, and inventory to the right product.

How It Works

Outbound Shipments

Orders imported from your channels create customer shipments. The scheduler sends assigned shipments to GFS with the carrier and service you set as the requested ship method. GFS picks, packs, and ships, and returns the carrier it actually used along with the tracking number, which Fulfil records against the shipment. Cancelling a shipment in Fulfil sends a cancellation to GFS on the next run, and GFS accepts it only while the order has not yet shipped.

Inbound Shipments

Supplier shipments send to GFS as ASNs, flagged as pallets or boxes based on the shipment's packages, with the inbound carrier and tracking number when available. As goods arrive, GFS confirms the received quantities; Fulfil marks the shipment Done on a full receipt and starts a new supplier shipment for the shortfall on a partial receipt.

Returns

Fulfil creates a return RMA against the original GFS order, and imports the returned items and quantities as GFS receives them, so a return is reconciled without leaving Fulfil.

Inventory Snapshots

GFS reports inventory as a full per-warehouse export rather than incremental adjustments. Importing a snapshot builds a cycle count in Fulfil, so counts stay accurate without Fulfil reconstructing them from movement history. GFS does not report incremental adjustments such as damages or shrinkage.

Support

For questions about this integration, contact Fulfil support. For GFS-specific questions or to obtain your Store ID, Store Secret, and API token, reach out to The Fulfillment Lab or your GFS account manager.

FAQ

Questions? Answers.

How do I set up The Fulfillment Lab fulfillment in Fulfil?

To set up The Fulfillment Lab in Fulfil, navigate to Inventory & Stock → Locations, create a new warehouse with Type set to 3PL, and configure your The Fulfillment Lab credentials. The setup typically takes 45 minutes.

Can I use The Fulfillment Lab for both Shopify and Amazon orders?

Yes, Fulfil's ERP automatically imports orders from Shopify, Amazon, and other channels. You can route all these orders to The Fulfillment Lab for fulfillment, and tracking information syncs back to each sales channel automatically.

How does inventory sync work with The Fulfillment Lab?

Inventory levels automatically sync between The Fulfillment Lab and Fulfil. When products are received at The Fulfillment Lab, stock levels update in Fulfil. When orders are fulfilled, inventory decreases automatically. This ensures accurate stock counts across all your sales channels.

Can I send supplier shipments to The Fulfillment Lab for receiving?

Yes, you can send purchase orders and supplier shipments directly to The Fulfillment Lab for receiving. Fulfil exports the shipment details to The Fulfillment Lab, and once they receive and inspect the products, the shipment is automatically marked as received in Fulfil with updated inventory levels.

Does tracking information sync automatically?

Yes, when The Fulfillment Lab fulfills an order, tracking numbers automatically sync to Fulfil and push back to Shopify, Amazon, and other connected sales channels, triggering automated customer notification emails.

Can I route orders automatically to The Fulfillment Lab?

Yes, Fulfil's automation rules allow you to automatically route specific orders to The Fulfillment Lab based on product type, destination, inventory availability, or custom criteria. This eliminates manual warehouse assignment and ensures orders flow to the right fulfillment center automatically.

How are returns handled with The Fulfillment Lab?

Returns can be sent directly to The Fulfillment Lab for inspection and restocking. Once The Fulfillment Lab receives and inspects returned products, inventory automatically updates in Fulfil and syncs back to your sales channels, making products available for sale again.

Can I manage multiple The Fulfillment Lab warehouse locations?

Yes, Fulfil supports multiple The Fulfillment Lab warehouse locations with unified visibility. You can view inventory across all The Fulfillment Lab facilities, route orders to the optimal location based on proximity or stock availability, and track fulfillment status across all locations from a single dashboard.

How does order batching work with The Fulfillment Lab?

Fulfil can batch multiple orders together before sending them to The Fulfillment Lab based on your configured sync schedule. This reduces API calls and streamlines fulfillment operations. You can adjust the batch frequency to match your fulfillment volume, from every 5 minutes for high-volume operations to hourly for lower volumes.

Can I split orders between my own warehouse and The Fulfillment Lab?

Yes, Fulfil intelligently splits orders when inventory is distributed across multiple warehouses. If some items are at The Fulfillment Lab and others in your own warehouse, Fulfil creates separate shipments for each location, ensuring customers receive all their items while optimizing fulfillment from the most appropriate facility.

Agentic ERP

Run it with your own AI agents.

Fulfil is an agentic ERP, so your The Fulfillment Lab data isn't locked behind screens. Query and edit live records in plain English from Claude or ChatGPT over MCP, point AI agents like Claude Code and Cursor at the CLI to automate multi-step work, or vibe-code the dashboard you need as a Micro App, no developers required.

AI Platform

How Fulfil uses AI across setup, search, and everyday operations

MCP

Connect Claude and ChatGPT to your live ERP data to view and edit records

CLI

Point Claude Code, Cursor, and other AI agents at your ERP

Micro Apps

Vibe-code custom dashboards and tools with no developers

Ready to get started with The Fulfillment Lab?

See how Fulfil integrates with The Fulfillment Lab.