A freight forwarder organizes international freight on behalf of others: choosing routes and carriers, preparing the paperwork and coordinating customs clearance. This guide explains what they actually do, what Spanish law says, how they differ from other roles and where their time goes.
Behind almost every container arriving at a Spanish port, every pallet leaving on a cargo plane and every truck crossing a border, there is a freight forwarder. It's the role that organizes the shipment from start to finish, so the customer doesn't have to deal separately with the shipping line, the airline, the road haulier, the warehouse and customs.
Even so, many people who work close to international trade couldn't say exactly what a freight forwarder does, how it differs from a customs broker or a logistics operator, or why its work generates so much paperwork. This article explains it, with a real example of how an import is handled behind the scenes.
A freight forwarder (transitario in Spanish) is a company specialized in organizing the international carriage of goods on behalf of others. Its customer is usually an importer or exporter that needs to move cargo from one country to another and would rather delegate to someone who knows the routes, the carriers and the formalities.
Spanish law recognizes this role in the Land Transport Act (LOTT). In the wording given by Law 9/2013, which amended the LOTT, article 121 defines freight forwarders as companies specialized in organizing, on behalf of third parties, the international carriage of goods: they receive cargo as consignees or hand it over to carriers, and carry out the administrative and customs formalities the shipment requires. In addition, when they act as intermediaries in contracting road transport, they need the transport operator authorization regulated by article 119.
The key is “on behalf of others”. A freight forwarder doesn't need to own ships, aircraft or trucks. What it brings is coordination: it decides how the goods travel, hires whoever moves them and makes sure every document is in place on time.
A forwarder's work varies by transport mode and type of customer, but it almost always includes these tasks:
Seen this way, a freight forwarder works like the conductor of the shipment: it doesn't play every instrument, but it answers for the whole piece sounding right. And almost all of these tasks have something in common: they depend on documents and the data they contain.
These four roles often get mixed up, partly because many companies combine several of them. It's worth separating them, because each one is responsible for different things.
The carrier is whoever physically moves the goods: the shipping line, the airline or the trucking company. The forwarder hires it, but isn't it. A sea shipment can involve one forwarder and three different carriers: the truck to the port of origin, the shipping line and the delivery truck at destination.
The customs broker (or customs representative) lodges the customs declaration on behalf of the importer or exporter and is technically responsible for it: tariff classification, customs value, origin. Many forwarders have their own customs department and also act as representatives; others work with an external broker. We explain this in more detail in our guide to the DUA customs declaration.
The logistics operator (or 3PL) focuses on warehousing, order picking and distribution. It may be the same company as the forwarder, but its business is in the warehouse rather than in international transport.
If a forwarder's work had to be summed up in one word, it would be “shipment file”. Every shipment opens one, and documents from very different sources pile up in it. The most common are these:
None of these documents lives in isolation. The number of packages on the packing list has to match the BL; the value on the commercial invoice feeds the customs declaration; the shipping line's invoice must match the agreed rate and the shipment file. That's why document management in logistics has little to do with filing: it's about keeping consistent data that arrives through different channels.
An importer in Valencia buys machinery from a Chinese manufacturer and hands the shipment to its forwarder. The forwarder books space with a shipping line, coordinates pickup at origin with its agent in China and opens the shipment file in its TMS.
From then on, documents start arriving, almost always as PDFs by email: the manufacturer's commercial invoice and packing list, the shipping line's draft BL, the arrival notice, and later the freight and destination charges invoices. In a manual operation, someone in the operations team opens each PDF and types the key data into the TMS: shipper, consignee, ports, container number, packages, weight, description of goods. As the container approaches port, the customs department retypes much of that same data into its clearance software to prepare the declaration. And when supplier invoices arrive, accounts reconciles them by hand against the rate and the shipment file.
The same piece of data (gross weight, for example) can be written three or four times into different systems, by different people, from the same PDF. Each transcription is a chance for error, and an error in weight or packages can end in a discrepancy with the manifest, an inspection or a delay in release.
With a digital workflow, the document is read only once. An extraction engine identifies the document type, extracts its data, validates it against the shipment file and sends it to the TMS and the clearance system. The team no longer transcribes: it only reviews the cases where something doesn't match.
80% less manual time in document processes automated with Kaiona.
The example above isn't an exception. At most forwarders, back-office work is split across three areas, and all three share the same bottleneck.
In operations, time goes into opening shipment files, transcribing BLs, AWBs and CMRs, and chasing missing documents. In customs, it goes into re-entering data that was already in the TMS to prepare each declaration, what's known as double entry. In accounts and billing, it goes into reconciling invoices from shipping lines, airlines and hauliers with variable rates and surcharges, something we explain in our guide to automated invoice processing.
The problem isn't that the team works slowly, but that volume grows faster than headcount. When a forwarder wins a customer or opens a route, the paperwork grows in proportion, and the only possible answer in a manual model is to hire more people to do the same transcription work. And these are profiles that are hard to find and train.
Digitalizing a forwarder doesn't mean changing TMS or ERP. Shipment management systems usually work well; what fails is how data gets into them. Well-planned logistics digitalization adds a layer that reads documents and feeds the existing systems.
In practice, that layer has three parts. The first is AI extraction: reading BLs, AWBs, invoices and declarations regardless of each supplier's format, which is what K-Scan does. The second is the digital shipment file, where each document is linked to its shipment, with its status and validated data, which is the role of K-Flow. The third is integration with the TMS, the ERP and the clearance software, so data arrives without copy and paste, which K-Plug handles.
The underlying shift is from transcribing every shipment file to reviewing by exception. The team stops being a manual bridge between documents and systems and spends its time on what actually needs judgment: incidents, customers and routing decisions. With this approach, Kaiona projects pay back the investment in under six months.
If you're on the other side, as an importer or exporter that needs a forwarder, these are the criteria that matter most in practice:
The last point says a lot about how a forwarder works internally: if it can give you your shipment status and documents instantly, its data is well organized; if every query takes a day, it depends on someone searching through email.
The freight forwarder remains a central piece of international trade because it solves something no individual carrier does: coordinating the whole shipment. What's changing is how that work gets done. Forwarders that stop transcribing documents gain the capacity to grow without expanding their back office at the same pace, and give their customers the visibility that is now expected.
If your team spends much of the day typing data from BLs, AWBs and invoices, Kaiona can help you measure how much time goes into it and how much can be automated without changing your systems.
It's a company that organizes, on behalf of its customers, the international carriage of goods: it hires carriers, prepares the documentation and coordinates customs formalities. The role is defined in article 121 of the Spanish Land Transport Act (LOTT).
No. The forwarder organizes the whole shipment; the customs broker lodges the customs declaration on behalf of the importer or exporter. Many forwarders have a customs department and also act as customs representatives.
The carrier physically moves the goods with its ships, aircraft or trucks. The forwarder doesn't need its own assets: it chooses and hires the carriers and coordinates the shipment from start to finish.
It's the Spanish term for freight forwarder, used in Spanish law and across the Spanish logistics industry.
No, Kaiona is not a traditional SaaS. We don't sell you a generic platform that you have to adapt to, nor a monthly user license for your team to do the work.
Kaiona functions as a custom artificial intelligence and automation layer that connects directly with your current systems (ERPs, CRMs, document management). We handle the technical complexity so that you only see the results within your usual workflow.
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