The right interface is crucial for smooth supply chains

Whether API or EDI - choosing the right interface not only influences IT, but also warehouse and shipping processes. This is an often underestimated factor that determines whether packages are sent seamlessly or processes come to a standstill.

API or EDI: Which interface aligns with your processes?

Stable processes with EDI

EDI has been in use for decades and is particularly suitable for companies with high shipping volumes and stable processes. Data transfer is reliable and secure - a decisive advantage for fast, uninterrupted label printing.

Flexibility in real time with API

APIs enable direct communication in real time, are easy to integrate into modern systems, and ensure fast onboarding. This makes them particularly attractive for companies with lower shipping volumes or where flexibility is paramount.

Technical differences with practical implications

The difference between API and EDI lies in the data transfer:

EDI

transfers data asynchronously via file.

API

works synchronously in real time.

This technical basis has a direct impact on process speed and flexibility.

Practical examples that show the difference

MRN (Movement Reference Number):

Some carriers require an MRN before the label is printed via API. As the number only becomes available after customs clearance, the shipping process can be blocked.

Multi-package consignments:

With API interfaces, the total number of packages often has to be specified with the first label. In practice, this information is often only known during packaging.

Label printing:

APIs usually supply labels in a fixed resolution (e.g. 203 dpi) and often only as a PDF. With EDI, on the other hand, labels can be individually designed and provided in native language for almost all printer types - crucial for maximum speed where high volumes are needed.

Conclusion: The interface must match the process

APIs and EDIs each have clear advantages and limitations. While APIs offer fast integration and flexibility, EDI scores particularly well for high volumes thanks to its stability and printing speed. It is crucial that the digital connection adapts to the logic of the warehouse processes - not the other way around.