Shopify and BigCommerce Fulfillment: 7 Challenges a WMS Can Solve

Shopify and BigCommerce help businesses build online stores, manage products, process customer orders, and sell across multiple markets. As order volumes and product catalogs grow, however, fulfillment becomes more complicated once those orders reach the warehouse.

Inventory must be available, orders need to reach the right fulfillment queue, warehouse teams need accurate picking and packing instructions, shipments must be confirmed, and returned products have to move back into the correct inventory status.

Shopify and BigCommerce manage important parts of the ecommerce experience. A warehouse management system becomes relevant when businesses need more control over what happens after an order is placed.

A 3PL warehouse management system connects ecommerce order data with warehouse operations. For businesses and 3PL providers managing Shopify or BigCommerce fulfillment, this can help coordinate inventory, order processing, warehouse execution, shipping, and returns.

This guide covers seven common Shopify and BigCommerce fulfillment challenges and explains where a WMS can provide additional warehouse-level control.

How Shopify and BigCommerce Fit Into the Fulfillment Process

Shopify and Warehouse Fulfillment

Shopify is a cloud-based ecommerce platform that helps businesses manage online storefronts, products, payments, customer orders, and connected sales applications.

For a smaller operation, fulfillment may remain relatively straightforward. As order volume grows or inventory spreads across warehouses, however, the challenge shifts from accepting the order to deciding how the warehouse should fulfill it.

A Shopify integration can connect Shopify orders with warehouse workflows so fulfillment teams can receive order information, process inventory, and return shipment updates without managing each step separately.

BigCommerce and Warehouse Fulfillment

BigCommerce supports online storefronts, product management, payments, SEO features, and multichannel selling.

Warehouse requirements become more complex when BigCommerce orders need to be coordinated across multiple locations, inventory pools, carriers, or fulfillment clients.

A BigCommerce integration can connect ecommerce orders with the warehouse processes used to allocate, pick, pack, ship, and update those orders.

Shopify and BigCommerce remain the commerce platforms. A WMS provides additional control over physical inventory and warehouse execution.

Where Shopify and BigCommerce End and a WMS Becomes Useful

The need for a WMS usually appears when fulfillment requires decisions or controls beyond simply receiving an ecommerce order.

This distinction is important because a WMS does not replace Shopify or BigCommerce. It supports the warehouse processes that become harder to manage as ecommerce fulfillment grows.

7 Shopify and BigCommerce Fulfillment Challenges a WMS Can Solve

Once ecommerce orders move into the warehouse, fulfillment teams need reliable order data, accurate inventory, controlled picking and packing, shipping coordination, and a clear process for returns.

Those workflows become harder when a business operates multiple stores, warehouses, sales channels, or fulfillment client accounts.

1. Disconnected Ecommerce and Warehouse Systems

Shopify and BigCommerce stores may connect with marketplaces, accounting platforms, shipping carriers, and warehouse systems.

Problems appear when those systems do not exchange information consistently.

Common issues include:

• Missing or duplicate orders
• Incorrect product information
• Delayed inventory updates
• Inconsistent order statuses
• Repeated manual data entry

For a single low-volume store, some of this may still be manageable manually. The problem becomes much more noticeable when several ecommerce stores or 3PL clients depend on the same fulfillment operation.

How a WMS Helps Connect Ecommerce and Warehouse Data

A connected WMS can receive ecommerce orders and move them into structured warehouse workflows without requiring teams to recreate the same information manually.

Order, inventory, fulfillment, and shipment data can move through a more consistent process from order import to warehouse execution.

This is particularly useful for 3PL providers managing several Shopify or BigCommerce client accounts from the same warehouse.

2. Delayed Shopify and BigCommerce Order Synchronization

Orders placed through Shopify or BigCommerce need to reach the warehouse in time for fulfillment teams to process them.

Delayed order imports can leave new orders outside the warehouse queue, create unnecessary CSV downloads, or cause time-sensitive shipments to miss processing cutoffs.

This is less about general order management and more about what happens between the ecommerce platform and the warehouse after the customer clicks Buy.

How a WMS Helps Move Orders Into Fulfillment

Connected order workflows can move ecommerce orders into a warehouse queue where teams can allocate available inventory, identify priority orders, and begin fulfillment.

This reduces dependence on spreadsheets and manual downloads while creating a more consistent Shopify order fulfillment and BigCommerce order fulfillment process.

Businesses that need broader control over order workflows can use dedicated order management software for deeper order-processing requirements.

3. Storefront Inventory Does Not Match Warehouse Inventory

A Shopify or BigCommerce store can only display useful inventory availability when the warehouse records behind it are accurate.

Differences can develop through:

• Receiving errors
• Incorrect putaway
• Missed inventory movements
• Damaged or quarantined stock
• Unprocessed returns
• Picking discrepancies
• Manual adjustments

The important issue for ecommerce fulfillment is what happens next. If warehouse inventory is wrong, the storefront may continue offering stock that is not actually available to ship.

How a WMS Helps Maintain Warehouse-Level Inventory Accuracy

A WMS records inventory as products move through receiving, storage, picking, packing, transfers, adjustments, and returns.

Using inventory management, warehouse teams can view stock by SKU, warehouse, bin, status, or client.

That warehouse-level record can then provide Shopify or BigCommerce with a more reliable view of what inventory is actually available.

4. Inventory Is Shared Across Multiple Stores or Channels

Many ecommerce businesses sell through more than one channel.

A company might operate a Shopify store, a BigCommerce site, marketplaces, wholesale accounts, or physical retail locations while drawing stock from the same warehouse network.

The challenge is not simply knowing how much inventory exists. It is deciding what inventory is still available after orders from different channels begin competing for the same stock.

How a WMS Helps Coordinate Shared Inventory

A centralized warehouse inventory record can help connected stores and sales channels work from the same physical stock position.

This can help businesses:

• Reduce conflicting stock quantities
• Track stock across warehouses
• Reserve inventory for orders or channels
• Reduce manual stock adjustments
• Reconcile inventory across connected stores

For a 3PL, the same principle applies across client accounts. Inventory can remain separated by ownership while warehouse teams manage fulfillment through the same operational system.

5. Shopify and BigCommerce Orders Still Need Accurate Picking and Packing

Receiving an order from Shopify or BigCommerce does not guarantee that the warehouse will pick the correct SKU, quantity, or package.

Warehouse workers still need to locate inventory and verify that the items being packed match the original ecommerce order.

Manual processes can lead to:

• Incorrect SKUs
• Wrong quantities
• Missing items
• Incomplete orders
• Products packed for the wrong customer

These mistakes can lead to replacement shipments, returns, additional shipping costs, and customer service work.

How a WMS Helps Verify Ecommerce Orders Before Shipping

Barcode-based workflows can validate products, quantities, storage locations, and packing steps before an order leaves the warehouse.

Workers can scan products while picking and packing, allowing the WMS to check those scans against the ecommerce order.

This adds a warehouse verification step between receiving the Shopify or BigCommerce order and confirming that it is ready to ship.

6. Shipping Updates Must Return to Shopify or BigCommerce

Ecommerce businesses may use different carriers or shipping services depending on destination, package characteristics, delivery requirements, or customer preference.

The warehouse must still create the shipment, generate the label, capture tracking information, and confirm that the order has been dispatched.

When those steps are handled separately, teams may end up copying tracking numbers or shipment statuses between systems.

How a WMS Helps Connect Warehouse Shipping With Ecommerce Orders

Connecting ecommerce orders with shipping management workflows allows warehouse teams to generate labels, capture tracking details, and confirm dispatch through the fulfillment process.

Shipment information can then be returned to Shopify or BigCommerce without repeatedly entering the same details.

The dedicated shipping page can handle broader carrier and shipping functionality. The important point here is keeping the ecommerce order and the physical shipment connected.

7. Returned Products Need a Warehouse Decision Before Restocking

A Shopify or BigCommerce return does not automatically mean the product should immediately become available for sale again.

When a returned item reaches the warehouse, teams may need to:

• Identify the original order
• Inspect the product
• Check its condition
• Record the reason for return
• Decide whether it can be restocked
• Place damaged or questionable inventory on hold

If this process is not controlled, a storefront may show returned inventory as available before the warehouse has confirmed that the item can actually be sold again.

How a WMS Helps Control Returns and Restocking

A structured returns management workflow can connect returned inventory with warehouse receiving and inspection.

Depending on the condition of the product, teams can restock it, place it on hold, quarantine it, or route it through another disposition process.

Only after that decision should the warehouse inventory status determine whether the item becomes available to Shopify or BigCommerce again.

Example: When Ecommerce Fulfillment Becomes a Warehouse Problem

Consider a 3PL managing three Shopify stores and one BigCommerce store from two warehouse locations.

The ecommerce platforms can continue receiving customer orders normally, but the warehouse still has to answer operational questions such as:

• Which warehouse should fulfill each order?
• Which client owns the inventory?
• Is the required stock available or already allocated?
• Which bin should the picker visit?
• Has the correct SKU been scanned?
• Which carrier service should be used?
• Has tracking been returned to the correct store?
• Can a returned item be placed back into available stock?

None of these questions means Shopify or BigCommerce is failing. They show where ecommerce order management ends and warehouse execution begins.

That distinction is where a WMS becomes useful.

When Does Shopify or BigCommerce Fulfillment Need a WMS?

Not every Shopify or BigCommerce business needs warehouse management software.

A WMS becomes more relevant when fulfillment starts requiring more operational control than the ecommerce platform alone is intended to provide.

Common signs include:

• Inventory is stored across multiple warehouse locations
• Several Shopify or BigCommerce stores share warehouse inventory
• Orders arrive from multiple ecommerce channels
• Picking and packing require barcode verification
• Warehouse staff rely heavily on spreadsheets or manual downloads
• Inventory updates between the store and warehouse are becoming difficult to reconcile
• Several carriers or shipping workflows need to be coordinated
• Returns require inspection before products can be restocked
• A 3PL manages inventory and orders for several ecommerce clients

At that stage, the decision is not whether Shopify or BigCommerce should be replaced. The question is whether the ecommerce platform needs to be connected with a system built specifically for warehouse execution.

Shopify and BigCommerce Fulfillment With Fulfillor

Shopify and BigCommerce manage storefronts, products, customer orders, and ecommerce transactions. Fulfillment becomes a separate operational challenge when businesses need to coordinate physical inventory, warehouse tasks, shipping, and returns.

A WMS can provide the additional warehouse-level control needed when order volume, sales channels, locations, or client accounts become harder to manage manually.

Fulfillor supports Shopify, BigCommerce, and multi-client ecommerce fulfillment through centralized inventory control, warehouse workflows, order processing, shipping, and returns management.

Book a demo to see how Fulfillor can support Shopify, BigCommerce, or 3PL fulfillment operations.