A Comprehensive Guide to Product Traceability

What is Product Traceability?

Product traceability refers to the ability to track and trace every single product  throughout the manufacturing process. This includes tracking the raw materials from the moment they enter the manufacturing process until products are shipped to suppliers and retailers.

Product traceability involves a lot of information. Team members are responsible for tracking each part and all the materials that go into a single product, along with the inspection results, assembly instructions, and how long each of these materials spend in every station.

Why is Product Traceability Important?

Product recalls tend to occur frequently. According to the Sedgwick 2021 State of the Nation Recall Index, more than 1 billion product units were recalled in the United States alone in 2021. There were over 53 million car recalls in 2019 that cost companies millions, and this is something that happens in all industries. But with product traceability, organizations are able to reduce the likelihood of recalls and prevent supply chain disruptions.

It’s important to stay on top of production and implementing a proper product and material tracing system is a great way of doing that. With product traceability, companies will be able to achieve the following:

• Reduces costs and fees: Effective product traceability helps with early detection of issues to prevent costly, large-scale product recalls .

• Protects consumer safety and manages risk: Traceability enables companies to identify and track production issues that could harm customers. In industries such as food and pharmaceuticals, defective or spoiled products can pose significant risks to public health.

• Complies with regulations: There are legal requirements in the manufacturing and food industries that require strict traceability and require detailed records of the products’ end-to-end processes.

• Improves quality control: If manufacturers understand and track every aspect of the production process, they gain greater control over their product’s quality. This helps them isolate lower-quality products that do not meet the company’s standards.

• Increases supply chain efficiency: Monitoring products throughout the supply chain makes it easier for companies to enhance logistics efficiency, optimize inventory, and minimize waste.

How Does It Work?

Product traceability can be separated into two categories: chain and internal traceability. While these two types of product traceability are very distinct, they also share a fair amount of similarities. Understanding these two distinct approaches is crucial if you wish to implement a quality product tracking system within the manufacturing process.

Chain traceability

Chain traceability looks at the bigger picture. Companies that implement chain traceability can track their products and materials through every step of the process. This gives a clear and concise report of how materials were processed during manufacturing and anything else that might be worth noting.

This approach to traceability also gives manufacturers the ability to track where their products are being shipped to help distributors and consumers track where the products came from. Seeing the supply chain allows manufacturers to have an easier execution of their processes while allowing consumers to have better transparency regarding the products and how they are made.

Internal traceability

As the name suggests, internal traceability monitors the movement and processing of products in a specific area. It’s generally used within an organization, especially those who manufacture different items in multiple facilities. For example, you can use internal traceability to track the process in a manufacturing plant and use a separate internal traceability system to track progress in the assembly factory.

Implementing Product Traceability in a Supply Chain

Implementing product traceability involves tracking and documenting a product’s journey from raw materials to final products, using various technologies in real time. Here are the key implementation steps:

• Define scope and granularity: Determine the level of detail needed to track the products. Lot-level tracking involves batches of similar products that meet compliance requirements. Item-level serialization is typically implemented in high-precision industries such as pharmaceuticals, where each product unit is assigned a unique ID.

• Assign unique identifiers using technologies: Every product or batch requires a unique identifier, such as a QR code or RFID tag, that connects the data to its origin. This makes it easier to differentiate items in case the supply chain is disrupted.

• Capture data for every tracking activity: Identify which activities require recording. Some of these include the arrival of materials, product transformation, packing, and shipping. It also needs to record the time, location and responsible party for the tracking.

• Connect the records to existing systems: Traceability is most effective when integrated with systems like Enterprise Resource Planning (ERP) and Warehouse Management Systems (WMS). This helps avoid entry duplications and provides a systemic view of the supply chain.

• Conduct a pilot test before scaling: Test a scope pilot on a product line or facility first to identify data gaps and integration errors without disturbing full operations.

• Schedule a regular review: Set a review every six to twelve months to update data model, retrain staff and verify if the system still complies with regulatory requirements. Use tools like checklists to verify whether current practices for traceability are still effective.

Key Examples by Sector

While product traceability is common across many fields, its application varies by sector to effectively address the specific issues and concerns of each industry. Here are some examples that demonstrate how traceability helps prevent product recalls:

Manufacturing

In the manufacturing sector, traceability is crucial for monitoring process control during production. Each individual component or item is assigned a unique identifier, such as a serial number or barcode. This system connects every finished product to specific machines, operations and timestamps to make sure a clear record of the production process and products.

If a defect or issue is identified during quality assurance, this data will help engineers identify the root cause, saving them significant effort. According to technical reviews from ScienceDirect, traceability is thoroughly integrated into Manufacturing Execution Systems (MES) to prevent tampering in every operational flow.

Food and Beverage

Food traceability follows a product from farm to table, tracking the origin of every ingredient, the conditions of its storage, and the batch codes attached to the finished products or meals. This process enhances transparency and helps address foodborne illnesses, as authorities can use these records to identify and remove affected products.

Food safety is also a cornerstone of the European Union and is crucial for maintaining public trust in the global food supply. As such, it’s important to track temperature during transit and verify the source of ingredients for the food products delivered.

Pharmaceutical

Pharmaceutical products use serialization with an assigned unique 2D barcode to prevent counterfeiting. This activity monitors the journey of medications, from manufacturers to pharmacists, to ensure the isolation of genuine, unexpired drugs.

Global regulations like the EU Falsified Medicines Directive (FMD) and the US Drug Supply Chain Security Act (DSCSA) require comprehensive traceability of prescription medications to prevent falsified drugs from entering the supply chain.