First used in the US to enable you to determine the physical position of goods in the chain. At each processing station, the goods are identified and this information is fed back to the software. This enables you to determine the status of the consignment. GPS is expected to be used in the future in order to be able to determine the exact geographic location of consignments.
Logistics Glossary, https://www.logisticsglossary.com/term/tracking-tracing/