Global Location Number (GLN) is used to uniquely identify legal entities (parties) and locations (addresses)
GLN identifies legal entities and locations. Location indicates physical structures such as a building, warehouse, hospital, loading dock, or even a specific shelf within a store while a legal entity indicates a company.
GLN, as opposed to a proprietary internal numbering system, provides a standardized way to uniquely identify locations. GLN can be used to identify farms, and to build applications such as hospital registries, food outlets, etc. Read more on GLNs