In the DVGW classification, Capacity User (Kapazitätsnutzer) denotes a company which acquires capacity for gas transport at bookable points of the TSO and assigns a balancing group to these purchases. As such, these companies now have their own code.
This code can now be added as a secondary DVGW identification on PRISMA by the shipper administrator. To find out where and how, please check this article: Account Management - How To Use The Shipper Administrator Functionalities?