ERP variables: Variables that are not managed in the characteristic attribute table, but in the link database (only relevant for ERP integration). This is data that originates from linked systems such as ERP/PDM, e.g. ERP number, material, price, stock, release status, etc.

Main variables: Variables that occur in NB and LINA are assigned to the main variables [Main variables] group.

Secondary variables: Variables that do not occur in NB and LINA are secondary variables [Secondary variables].

Topology variables: This option applies if the option Show topology values the option Show topology values [Show topological values] has been activated, i.e. the topology variables [Topology variables] are displayed by default. You can find details on this at Section 1.4.1.10, “Show topology variables in table ”.