2 - What is a barcode?

In our first blog post, we expounded on the importance of SKUs in modern 3PL fulfillment. Today, let's dive into another vital element of inventory management: the ubiquitous barcode. Just like SKUs, barcodes play a significant role in streamlining supply chain operations, especially when it comes to working with third-party logistics (3PL) providers. So, let's decode the world of barcodes and uncover their value in your business's inventory management practices.

What is a barcode?

A barcode is a visual representation of data in the form of parallel lines, which can be read instantly by a barcode scanner. The scanner interprets the varying widths and spacings of these lines or patterns and converts them into alphanumeric characters. These characters often represent a product's SKU or other relevant information, such as its price or manufacturing date.

Barcodes come in two main formats:

  • 1D (one-dimensional) - Typified by the Universal Product Code (UPC) seen on countless store products.

  • 2D (two-dimensional) - A new convention, 2D barcodes (notably QR codes) store information more densely and, most notably, can be scanned using smartphones.

Why are barcodes important for inventory management?

Barcodes have revolutionized inventory management by automating and simplifying the tracking process. They offer several advantages over manual data entry, such as:

  1. Speed: Barcode scanning is significantly faster than manually entering product information, saving valuable time and increasing efficiency in warehouse operations.

  2. Accuracy: Human error is inevitable with manual data entry. Barcodes minimize mistakes, ensuring that the correct information is captured and recorded.

  3. Real-time tracking: Barcodes provide real-time visibility into inventory levels, helping you make informed decisions about reordering and stock allocation.

  4. Streamlined processes: Barcodes support various supply chain processes, from receiving and storing inventory to picking, packing, and shipping orders.

Barcodes in the 3PL fulfillment process

Now that we understand the benefits of barcodes let's explore their role in the 3PL fulfillment process:

  1. Inventory receipt: When a shipment arrives at a 3PL warehouse, workers scan the barcodes on the products or pallets to quickly and accurately record the incoming inventory.

  2. Storage: Beyond their role on Items, barcodes also can be used for distinct warehouse locations. This helps 3PLs optimize warehouse space by locating each item into a trackable space. They can quickly find and retrieve products when needed, reducing the time spent searching for items.

  3. Picking and packing: During the order fulfillment process, warehouse workers use barcode scanners to confirm they have picked the correct items. This reduces the risk of errors and ensures that customers receive the right products.

  4. Shipping: Barcodes play a crucial role in generating shipping labels, which include tracking information for carriers and customers. This helps ensure that packages are delivered accurately and efficiently.

  5. Returns management: When a customer returns a product, 3PL providers can quickly process the return by scanning the barcode. This helps to update the inventory levels and streamline the returns process.

Implementing barcodes in your business

Ready to harness the power of barcodes for your inventory management? Here are some best practices to consider:

  1. Choose the right barcode format: Depending on your needs and the information you want to store, select the appropriate barcode format (1D or 2D) for your products.

  2. Invest in quality barcode equipment: Purchase reliable barcode scanners and printers to ensure accurate and efficient scanning.

  3. Train your staff: Ensure your team is well-trained in using barcode technology, from scanning products to understanding the information encoded within the barcodes.

  4. Collaborate with your 3PL provider: Share your barcode data with your 3PL provider and ensure they have the necessary equipment and systems in place to work with your barcodes. This will help streamline the entire fulfillment process.

  5. Monitor and maintain: Regularly review your barcode system to ensure it remains accurate and efficient. Update your barcodes as needed to reflect changes in your product line or inventory management practices.


    In conclusion, barcodes are an indispensable tool in modern inventory management, particularly within the 3PL fulfillment process. By understanding the importance of barcodes and implementing them effectively, you can significantly improve your supply chain operations and overall business efficiency.

    So, embrace the power of barcodes and watch your inventory management processes transform for the better! If you have any questions or need further guidance, feel free to leave a comment below. I'm always here to help you navigate the fascinating world of inventory management and logistics.

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1 - What is a SKU?

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3 - What is a location?