Sync Any Warehouse to Your Sales Channels — No API Development Required

Every morning, the same routine. Download the inventory report from your 3PL. Open Stockpilot. Upload the CSV. Hope nothing changed in the 20 minutes between export and import.

Then a customer orders a product that your 3PL actually ran out of yesterday. The CSV was already stale when you uploaded it.

This is the reality for sellers working with external warehouses, fulfillment partners, or dropship suppliers. Your inventory lives in their system. Your sales channels live in yours. The gap between them is where overselling happens.

Most solutions to this problem involve expensive API development projects that take months. Or they require you to switch everything to one closed ecosystem.

Stockpilot's Warehouse Feed Management takes a different approach: simple CSV feeds that connect any system, automatically, without writing a single line of code.

The inventory sync gap

When you work with external partners — a 3PL handling fulfillment, a supplier providing dropship inventory, or a separate WMS in your own warehouse — you're dealing with systems that don't naturally talk to each other.

Your 3PL knows exactly how many units sit on their shelves. But that number doesn't automatically flow to Amazon, bol.com, or your webshop. There's a gap.

What happens in that gap:

Your 3PL receives a shipment and books in 500 units. Your sales channels still show the old quantity. You're underselling — leaving money on the table because customers see "low stock" warnings or "out of stock" when inventory actually exists.

Or worse: your 3PL ships the last 10 units to a B2B customer. Your sales channels still show 10 available. You sell all 10 again. Now you're overselling — canceling orders, damaging your marketplace ranking, and frustrating customers.

The gap isn't just an inconvenience. It directly costs you revenue and reputation.

Why traditional solutions fail

Manual CSV uploads

The most common approach: someone downloads inventory from System A and uploads it to System B. Daily. Sometimes multiple times per day.

This works until it doesn't. The person responsible is sick. The upload happens at 9am but a big order comes in at 8:45am. The CSV format changes slightly and the import fails silently.

Manual processes don't scale. And they're only as reliable as the human doing them.

Custom API integration

The "proper" solution: hire a developer to build a direct connection between systems.

Except API projects routinely take 3-6 months. They cost thousands of euros. They require maintenance when either system updates. And if you switch 3PLs or add a new supplier, you start over.

For most e-commerce businesses, this is overkill. You need reliability, not complexity.

All-in-one platforms

Some systems promise to handle everything — but only if you move your entire operation onto their platform. Your 3PL must use their WMS. Your suppliers must adopt their portal.

Reality: your partners have their own systems and aren't switching for your convenience.

Warehouse Feed Management: the simple middle ground

Stockpilot's Warehouse Feed Management works with what you already have. If your external system can export a CSV file — and virtually all of them can — you can connect it to Stockpilot automatically.

The system works in two directions:

Feed IN pulls inventory data from external systems into Stockpilot. Your 3PL's stock levels, your supplier's available quantities, your manufacturing system's finished goods — all flowing into Stockpilot automatically.

Feed OUT pushes Stockpilot inventory data to external systems. Share real-time stock levels with partners, provide feeds to EDI systems, or give your 3PL visibility into what you're selling.

No API development. No complex integration projects. Just CSV files and URLs.

Feed IN: importing external inventory

Feed IN solves the most common sync problem: getting accurate inventory counts from external warehouses into Stockpilot so your sales channels reflect reality.

How it works

Your external system exports inventory to a CSV file or Google Sheet at a URL. Stockpilot periodically fetches this file, matches products by SKU or barcode, and updates quantities in the corresponding Stockpilot warehouse.

That's it. No manual downloads. No uploads. No human in the loop to forget or make mistakes.

Setting up a Feed IN

Step 1: Get the feed URL from your external system

Most WMS and 3PL systems can export inventory to a hosted CSV file. Some publish to FTP, others to cloud storage with a public URL. Google Sheets works too — just publish the sheet to web and use that URL.

Step 2: Configure the feed in Stockpilot

Tell Stockpilot where to find the file, which columns contain the product identifier (SKU or barcode) and quantity, and which Stockpilot warehouse should receive the updates.

Step 3: Stockpilot handles the rest

The system fetches the feed on a schedule, validates the data, matches products to your inventory, and updates quantities. If something doesn't match, you get clear error reporting so you can fix it.

Matching products across systems

Your 3PL might use different product codes than you do. Feed IN handles this through flexible matching:

Match by SKU: If your external system uses the same SKUs as Stockpilot, matching is automatic.

Match by barcode: If SKUs differ but barcodes (EAN/UPC) are consistent, match on those instead.

Combined matching: Use both — the system tries SKU first, falls back to barcode if no match.

This flexibility means you don't need perfect identifier alignment to get started. Connect now, clean up identifiers over time.

Feed OUT: sharing inventory with external systems

Feed OUT works in the opposite direction: making your Stockpilot inventory available to external systems.

Use cases for Feed OUT

3PL receiving: Give your fulfillment partner visibility into incoming inventory so they know what to expect.

EDI requirements: Enterprise customers often require inventory feeds in specific formats. Feed OUT generates the CSV they can consume.

Supplier coordination: Share sales velocity with suppliers so they can anticipate your reorders.

Custom integrations: Feed any system that can consume a CSV via URL — reporting tools, BI platforms, planning systems.

How it works

Stockpilot generates a CSV file containing your inventory data. This file lives at a secure URL that external systems can fetch whenever they need current data.

You control which fields appear in the export:

• Item name
• SKU
• Barcode
• Purchase price
• Current quantity
• Inbound quantity (from open purchase orders)

Each time the URL is accessed, it returns current data — not a stale snapshot.

Real-world scenarios

Scenario 1: 3PL fulfillment integration

The situation: You sell on Amazon, bol.com, and your Shopify store. A 3PL handles all fulfillment from their warehouse.

The problem: Their WMS knows current stock. Your sales channels don't. You're either overselling or showing false "out of stock" messages.

The solution:

• Feed IN: 3PL exports their inventory hourly to a CSV. Stockpilot imports it automatically. Your sales channels always show accurate stock.
• Feed OUT: Stockpilot exports product data. 3PL imports it into their WMS so they can receive and identify your products correctly.

Scenario 2: Dropship supplier network

The situation: You sell products from three different suppliers who ship directly to customers. You never touch the inventory.

The problem: Each supplier's available stock changes constantly. You have no visibility until a customer orders something that's actually out of stock.

The solution:

• Feed IN: Each supplier publishes their available inventory to a CSV. Stockpilot pulls all three feeds, creating a unified view of sellable inventory.
• Your sales channels reflect true availability across all suppliers. No more overselling products suppliers can't fulfill.

Scenario 3: Multi-warehouse operation

The situation: You have products in your own warehouse plus a secondary location managed by a partner using their own WMS.

The problem: Stockpilot knows your warehouse. The partner's WMS knows theirs. Neither system has the full picture.

The solution:

• Feed IN: Partner's WMS exports their inventory to a CSV. Stockpilot imports it as a separate warehouse location.
• Stockpilot now shows total inventory across both locations. Your sales channels see combined availability.

Scenario 4: Manufacturing integration

The situation: You manufacture products. Your production system tracks finished goods. Stockpilot manages sales and fulfillment.

The problem: When production completes a batch, someone has to manually update Stockpilot. Delays mean underselling or inventory confusion.

The solution:

• Feed IN: Production system exports finished goods inventory. Stockpilot imports quantities automatically.
• Products become available for sale immediately after production — no manual steps.

Why CSV beats complex APIs

Engineers might cringe, but CSV is the universal language of business systems. Every WMS, ERP, production system, and spreadsheet can export CSV. Many have been doing it for decades.

Advantages of CSV-based integration:

Setup in minutes, not months: No development project. No waiting for IT resources. Business users can configure feeds themselves.

Universal compatibility: Works with legacy systems from 2005 and modern cloud platforms alike. If it can make a CSV, it can connect to Stockpilot.

Easy troubleshooting: CSV is human-readable. When something goes wrong, you can open the file and see exactly what data is being sent.

Low maintenance: No API versions to track. No breaking changes when systems update. CSV is stable.

No vendor lock-in: If you switch 3PLs or change systems, you adjust the feed URL. No rebuilding integrations from scratch.

The goal isn't technical elegance — it's getting accurate inventory across systems reliably. CSV achieves that with minimal complexity.

Getting started with Warehouse Feeds

Prerequisites

For Feed IN:

• An external system that can export inventory to a hosted CSV file or Google Sheet
• The CSV must contain a product identifier (SKU or barcode) and quantity column
• The file must be accessible via URL

For Feed OUT:

• External systems that can fetch and process CSV from a URL
• Understanding of which data fields those systems need

Implementation steps

1. Audit your external systems

What systems have inventory data you need in Stockpilot? Can they export to CSV? How often does the data update?

2. Check identifier alignment

Do your external systems use the same SKUs or barcodes as Stockpilot? If not, which identifier can you match on? This determines your matching strategy.

3. Configure feeds in Stockpilot

Set up Feed IN connections for each external inventory source. Configure Feed OUT if external systems need your inventory data.

4. Test with a subset

Start with a few products to verify matching works correctly. Check that quantities update as expected.

5. Expand to full catalog

Once confirmed working, apply to all products. Monitor for matching errors and resolve any product identifier issues.

Monitoring and maintenance

Stockpilot logs all feed processing activity. You can see:

• When feeds were last fetched
• How many products matched
• Which products failed to match and why
• Any errors during processing

Regular review of unmatched products helps you identify identifier cleanup needed — missing barcodes, SKU mismatches, or new products not yet in Stockpilot.

The end of manual inventory uploads

Every minute you spend manually transferring inventory between systems is a minute you're not spending on growth. Worse, manual processes guarantee errors — it's just a matter of when, not if.

Warehouse Feed Management transforms Stockpilot from an inventory management tool into a central hub that connects your entire operation. Your 3PL, your suppliers, your secondary warehouses, your production systems — all feeding data into one place, automatically.

Your sales channels show accurate stock. Your customers get what they order. Your marketplace rankings stay protected.

No API projects. No developer dependency. No more stale CSVs on someone's desktop.

Just accurate inventory, everywhere, automatically.