IWS Blog

Welcome to our warehouse management IWS blog, your go-to resource for insights, trends, and best practices in the dynamic world of warehouse operations. As the heartbeat of modern commerce, efficient warehouse management is crucial for businesses striving to meet the demands of today’s fast-paced market
Isometric illustration of boxed orders on a pallet beside a wall calendar with one date circled, and a delivery van leaving a loading dock
November 4, 2026

2026 Holiday Shipping Deadlines for Ecommerce Brands: UPS, FedEx and USPS

For delivery before Christmas 2026, ship USPS Ground Advantage by December 17, Priority Mail by December 18 and Priority Mail Express by December 19. FedEx and UPS 2-day services run to December 22 and overnight services to December 23, for delivery by December 24. Ground dates depend on transit days.
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Isometric illustration of a warehouse worker packing a bagged perfume bottle into a cushioned box beside a marked carton headed for a ground delivery truck
October 30, 2026

How to Ship Perfume: Carrier Rules, Limits and Packing Steps

To ship perfume in the U.S., treat it as a flammable liquid: send it by ground only, seal each bottle
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Isometric illustration of a Long Island warehouse sending delivery vans to New York City and other East Coast cities, with zone rings around it
October 29, 2026

Long Island 3PL Fulfillment: Shipping Reach, Cutoffs and Costs From Farmingdale, NY

A Long Island 3PL keeps New York City, northern New Jersey and southern Connecticut in USPS Zone 1 and the
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Isometric illustration of a cosmetics brand office reviewing a product label, linked to a warehouse where a worker packs a sealed beauty gift set
October 27, 2026

MoCRA and Your 3PL: What the Cosmetics Brand Owns vs What the Warehouse Owns

Under MoCRA, the brand named on the label owns most FDA obligations, and a 3PL that only stores and ships
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Isometric illustration of a warehouse loading labeled pallets onto a truck bound for a retail distribution center, with EDI documents and a delivery window icon
October 20, 2026

Retail Routing Guides and Chargebacks: What Walmart, Target, Amazon Vendor and Costco Require From Your 3PL

A retail routing guide is the retailer’s rulebook for packing, labeling, documenting and delivering your purchase orders, and every missed
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Isometric illustration of a fulfillment warehouse storing supplements and packaged food, with a worker scanning a box and a registration checklist
October 14, 2026

FDA Registered vs FDA Approved Warehouse: What Supplement and Food Brands Actually Need

There is no such thing as an FDA approved or FDA certified warehouse. A warehouse that holds food or dietary
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Illustration comparing DDP and DDU shipping: one van clears customs with duties prepaid by the seller, the other waits while the customer pays duties at the door
October 12, 2026

DDP vs DDU: Who Pays Import Duties, and How to Avoid Customs Delays

Under DDP, the seller pays import duties, taxes, and clearance costs before delivery. Under DDU, the buyer pays those charges
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Stack of standard 48x40 GMA wood pallets in a fulfillment warehouse
September 23, 2026

Standard Pallet Sizes and Dimensions: US, Euro, and ISO Charts

The standard pallet in North America is 48 x 40 inches (121.9 x 101.6 cm), known as the GMA pallet,
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Billing address versus shipping address at checkout: one tied to the payment card, one to the delivery destination
July 30, 2026

Billing Address vs Shipping Address: What’s the Difference?

Almost every online checkout asks for two addresses, and the second one is where shoppers hesitate. One address is tied
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What makes up the landed cost of an imported product.
July 30, 2026

What Is Landed Cost? The Formula, a Worked Example, and How to Lower It

A product can look profitable on paper and still lose you money. You buy a unit for eight dollars, sell
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