I'm working on building a BOM for a large assembly in SW09 SP2.0, and I'm runninginto problems where some of my custom properties are showing up in my BOM, and others are not. there is not rhyme or reason to what is going on. Case in point ... Two parts from Tyco Electronics (downloaded the step file from their website). my properties are: Description, Manufacturer, Vendor, VendorNo, Cost, and Unit of Measure. One part has only the description in the BOM, the other has the VendorNo only. has anyone seen anything like this before?