When details are generated ".upd" files are automatically created by Advance Steel . Each detail has a corresponding ".upd" file.
These files contain information about the model and are used for a faster update of the details, when necessary.
When a detail is deregistered, it will automatically be moved with the .upd file to the DeRegistered folder.
There are 2 cases of detail registration:
Before a registration, you must copy the .dwg and .upd files to the Details folder, where the details will be registered.
In this case, in the Document Manager, the status of the details will be update only if changes were made in the model.
When the registration is made without an .upd file, a new file will be created automatically. This new .upd does not have information about the model or about BOMs from drawings. If you want to have that model information in the .upd file you must "force update" the registered details.
To complete the file with information about the BOMs from details, the user must open the detail and use the Update list command.