Data Fabric Table LimitationsUnique Column for Referenced Tables A Data fabric table can reference a ServiceNow locally stored table. The referenced ServiceNow table can only have a single column marked as unique (the primary key). Because ServiceNow tables are created with the sys_id column marked as unique, the Data fabric table must also contain the sys_id value to complete the reference. Mapping data with duplicate connection schema names When mapping data, ensure that the data source does not use case-sensitive table names. For example, if both MY_TABLE and my_table exist in the database, the schema will not load because the system cannot differentiate between the tables.