Model Objects (beams, plates, gratings etc.) and Assemblies (groups of elements joined by certain criteria) have different fabrication information available in the model, depending on the project state.
Assembly Fabrication Data is available only after you define the assembly (by numbering or using Define as main part from the element properties dialog in the Naming tab). The Assembly Fabrication Data is defined on assembly and is identical for all the assembly components.
Approval status, Approval status code and Approval comment mark the modeling status of an assembly.