Shippers who would like to use the services of Gasunie Deutschland can book entry and exit capacity (towards final customers, biogas plants and storage connection points) at the border- and market area transition points. Capacity bookings can be managed via PRISMA, the common online platform for capacity marketing of the European TSO's. Furthermore, Gasunie Deutschland offers shippers also the opportunity to market acquired capacities on the secondary market. The online PRISMA platform can also be used for this purpose.