Fundamentals > Family Tables > Adding Items to Family Tables > Adding Features to Family Tables > Tip: Adding UDFs to Family Tables
  
Tip: Adding UDFs to Family Tables
When adding a UDF to a Family Table, keep in mind that only table-driven UDFs (generic or instance) that have been placed on the model can be added to a family table. Adding UDFs to Family Tables do not work under the following circumstances:
When a model contains a local group or UDF group definition, the definition itself is not a valid group to add to the Family Table. You must first define the group, designate it as table-driven, and then place it on the model before you add it to the Family Table.
When a simple UDF is placed on a model, the UDF itself is not a valid group to add to the Family Table. You must first designate it as table-driven and then place it on the model before you add it to the Family Table.