Sending an invoice over the Peppol network to a GLN number is currently not possible in Lucy. This is because Lucy's focus is currently on B2B e-invoicing in Belgium.
What is GLN?
A GLN stands for Global Location Number and is an internationally unique identification number that is especially useful for larger companies with multiple locations or entities. By giving each location or entity a separate GLN, e-invoices can be sent to the correct location/entity.
The GLN has a Peppol Id that starts with '0088'.