Understanding product structure (BOM) comparisons

You compare the displayed state of the product structures (BOMs), that is, everything that is currently visible in the two compared structures. Collapse assemblies if you do not want to include them in the comparison. You must set the appropriate revision rule and variant rule (if any), to configure the structure in each window. If you apply a variant rule, ensure you hide the unconfigured components. You can also compare loaded view types. The comparison also identifies differences between supporting objects, including: Item elements (also called GDEs or general design elements). Connections Signals Reference designators Find numbers Vendor parts, if the optional vendor management solution is installed. Multi-field key properties. Multi-field key information may be defined to distinguish between items with the same identifier, which would otherwise give incorrect results in the comparison.