An establishment is a structure legally and financially dependent on a company (or business). In France, it will have a business registration number (SIRET) issued by the French National Institute for Statistics and Economic Studies (INSEE).

It may be worth using the “establishment” concept to compartmentalize your invoicing when processing invoices via the SY Portal.

SY allows a "Manager" to define dependent establishments for his/her company and then to define the users responsible for issuing invoices for a specific set of establishments.