A fabrication part could only belong to one (1) BOM schedule in a project using the Selection BOM command. If a selection of fabrication parts are attempted to be added to a second BOM schedule, the user will be notified accordingly.

The user will be prompted to make a decision to either include those elements in the new BOM schedule or in the existing BOM schedule:

After the decision is made by the user, the Selection BOM Commands will proceed to create BOM Schedules accordingly.