By AsiaCommerce E-commerce Distribution & Fulfillment Team

ASIACOMMERCE - Footwear inventory management becomes a growth problem when sales continue but the sizes customers want keep disappearing.

Your warehouse still holds shoes, the collection remains listed, and the sales report shows demand.

Yet customers keep asking for sizes your local team cannot supply.

Ordering more of the same collection may leave slower sizes untouched while the popular ones disappear again.

For footwear brands selling across Indonesia, Malaysia, and the Philippines, this calls for visibility beyond total pairs.

AsiaCommerce has supported cross-border sourcing and Southeast Asian market expansion since 2016.

A well-stocked collection can still be unavailable in the combination your customer actually wants.

1. Sales Can Look Healthy While Size Availability Breaks Down

A footwear model can generate strong revenue while losing opportunities in particular sizes.

The commercial impact becomes clearer when customers arrive ready to buy.

In the Spring 2026 AlixPartners–FDRA U.S. survey, 65% of respondents said they had abandoned a purchase because their size was unavailable. Source: AlixPartners

This is U.S. evidence rather than a Southeast Asian benchmark, but it highlights the importance of size-level availability.

The inventory problem can also hide inside apparently reasonable replenishment decisions.

For example, a distributor may delay another order because the collection still has substantial stock overall.

However, that remaining stock may sit in sizes that cannot serve current demand.

Buying the same assortment again can then repeat the imbalance.

One model ties up inventory while a different size combination keeps generating unfulfilled interest.

Customer responses will vary.

Some may wait, change styles, or accept another fit, while others buy elsewhere.

Research in Manufacturing & Service Operations Management found that some stockout demand shifted to adjacent sizes at a footwear retailer. Source: INFORMS

(ALSO READ: Indonesia, Malaysia, or the Philippines? Where Should Your Footwear Brand Expand Next?)

That finding supports avoiding the assumption that every missing size produces the same customer response.

The business still needs to understand which combinations it can reliably supply.

2. Recorded Sales Cannot Show Demand That Stockouts Prevented

Sales records describe completed transactions.

They cannot, by themselves, explain every purchase that became impossible because a size was unavailable.

Consider a sneaker size that sells out early in a campaign.

Its sales slow afterward because the remaining customers cannot order it.

If the next buying decision uses sales totals alone, the result can understate that size's potential demand.

Meanwhile, another size may keep selling simply because it remains available for longer.

The resulting comparison mixes customer preference with the opportunity to purchase.

This is why footwear inventory management needs context around availability, alongside sales performance.

A regional size assumption cannot resolve the problem.

Your collection, intended customer, fit, sales channel, and country all matter to the interpretation.

A broad claim about popular Southeast Asian sizes does not establish the right assortment for a particular brand.

Likewise, a nominal size label cannot prove that two different models fit the same way.

For brand owners, the decision concerns whether local reporting explains the constraints behind recorded sales.

Headquarters should be able to distinguish weak demand from unavailable stock before approving another repeat order.

Otherwise, the company may keep reproducing an assortment that looks justified in aggregate but fails customers locally.

3. The Same Pair Cannot Support Every Channel at Once

Adding marketplaces or retail accounts increases the number of places that can promise stock to customers.

It does not increase the number of pairs available.

If a retail allocation and an online store both rely on the same size, the commitment needs shared visibility.

Otherwise, one channel can keep offering a pair that another channel has already claimed.

Inventory status matters as much as the physical count.

Shopify's documentation, for example, separates on-hand, available, committed, unavailable, and incoming inventory. Source: Shopify Help Center

The practical distinction is useful even when a business uses a different system.

Stock situation	What the sales team needs to know
Physically in the warehouse	Whether those pairs remain available to sell
Already committed to orders	Which customer or channel has claimed the stock
Awaiting a condition check	Whether the team can release the pair for sale
Still incoming	When stock will become ready for local fulfillment

Visibility also needs to reflect the location serving the order.

A pair held in Malaysia does not automatically make that size locally available for an Indonesian customer.

Cross-border movement may involve separate arrangements before the destination team can fulfill the sale.

Consequently, the useful inventory picture connects the variant, location, status, and channel commitment.

A single regional total cannot answer those questions.

(ALSO READ: Your Footwear Distributor Wants to Order. Who Will Handle Market Entry?)

When the connections fail, a stock problem becomes a customer-service problem through cancellations, delays, or uncertain delivery promises.

4. A Returned Pair Is Not Automatically Sellable Stock

Returns and size exchanges can change inventory availability after the initial sale.

However, receiving a pair back does not establish whether the next customer can buy it.

The team may still need to confirm the model, size, condition, and completeness of the packaging.

Shopify's inventory guidance distinguishes stock awaiting quality control from sellable inventory and records return restocking when an item can be resold. Source: Shopify Help Center

The operational implication goes beyond updating a quantity.

If a returned pair becomes available too early, another order may promise stock that still needs assessment.

If its status remains unresolved too long, the business may overlook inventory that could support a sale.

Size exchanges add another constraint because the replacement size must also be available.

A refund, a returned parcel, and a replacement order therefore represent different events in the stock picture.

Local warehousing can support their coordination when responsibilities and inventory updates connect.

Better fit information can also help customers make informed choices.

However, fit tools cannot replace the local work of receiving returns and confirming what the business can sell again.

For a foreign brand, this makes returns handling part of inventory management rather than an isolated customer-service task.

5. Replenishment Must Address the Missing Sizes, Not Just Replace Sold Pairs

When popular sizes disappear, ordering another standard assortment can recreate the same problem.

The business receives additional stock, but the original mismatch may remain.

That does not mean suppliers can always provide individual sizes without constraints.

Production schedules, packing configurations, product availability, and existing commercial terms can limit the options.

The replenishment decision needs to connect those upstream constraints with what local customers are actually requesting.

A smaller or more frequent order is useful only when the supply arrangement can support it.

Likewise, an expected arrival date does not establish when the local team can offer the product for sale.

Stock still needs to complete the relevant movement, receipt, and availability updates.

This creates a coordination requirement between the brand, distributor, supplier, and local operations team.

The distributor understands channel commitments, while the supplier controls what it can produce or release.

The warehouse confirms receipt, and marketplace operators manage what customers can order.

When these parties work from different information, replenishment can lag behind the need it was meant to address.

A promotion can expose that gap quickly by concentrating demand on a particular model and size combination.

Therefore, the commercial question extends beyond when to place another order.

It concerns whether the supply chain can restore the local availability that sales activity requires.

6. Give Local Availability Clear Operational Ownership

Persistent size gaps deserve attention across the operating model, rather than repeated requests to buy more stock.

(ALSO READ: Mau Order Banyak dari Taobao? Jangan Biarkan Prosesnya Berantakan)

Someone needs visibility into the relationship between sales, allocations, returns, and incoming supply.

That responsibility should connect the people managing inventory with those making promises to customers.

Software can support visibility, but the business still needs ownership when records conflict or stock requires a decision.

For example, an inventory alert cannot decide whether a returned pair is ready for resale.

It also cannot resolve a disagreement between retail reservations and marketplace availability without an agreed commercial responsibility.

AsiaCommerce can support E-commerce Distribution in Indonesia, Malaysia, and the Philippines, depending on project requirements.

Relevant support can include inventory management, warehousing, fulfillment, marketplace operations, and local distribution coordination.

Where replenishment requires China-side supplier coordination or quality management, China Sourcing can support those upstream needs.

For expansion into another country, Market Entry support can connect import readiness with the intended local distribution arrangement.

The objective is to keep the product customers want connected with stock the local team can actually fulfill.

If your distributor relationship still lacks a clear import arrangement, read Your Footwear Distributor Wants to Order. Who Will Handle Market Entry?

If products already sell but size gaps keep returning, discuss your inventory and distribution requirements with AsiaCommerce.

Discuss Your Footwear Inventory and Distribution

AsiaCommerce: Cross-Border Supply Chain Enabler for Southeast Asia