When your company is in a contract with a GPO, the GPO creates, manages, and deletes your users, locations, and Global Location Numbers (GLN). The responsibility falls on the GPO to gather and input information correctly to utilize for different purposes such as Electronic Data Interchange (EDI).
When your company becomes self-managed, the responsibility falls on you to gather and input information correctly to utilize for the different purposes such as Electronic Data Interchange (EDI).
For example, if a GPO provides purchasing services for a network of health care providers such as a hospital system with multiple campuses that have independent pharmacies, the GPO is responsible to make sure each of the appropriate locations have the correct Location Data & GLN.
If one of the hospitals became self-managed, that hospital would be responsible for its pharmacy to have the correct location data and GLN.