You can create the metadata configuration for a tenant by using the Data Modeler feature within the Reltio Console. There you can retrieve, edit, and apply a modified L3 layer to your tenant. As an alternate, you can also use the Reltio API calls Get Configuration and Set Configuration, which are available in the Reltio API.

When the L3 is applied to the tenant, the system executes the inheritance feature, assuming your L3 includes a reference to an L2 layer or to the L1 layer. Then the consolidated configuration (L1+L2+L3) becomes and is thereafter known as the tenant configuration or metadata configuration. The tenant now uses this consolidated tenant configuration.

For more details about the L3 layer, see Reltio L3 Layer -- Customer tenant.