Is there a way to auto assign part number to SW documents

As far as I know, Property Links Professional has this functionality (and more).

http://www.javelin-tech.com/main/products/propertylinks.htm

They call it "Automated Part Number Generator"

James,

The files are already distinguished by their extension (.sldprt, .sldasm & .slddrw).

By prefixing the files as you suggest, you will lose the automatic "Open Drawing" functionality when right-clicking a part or assy.

Hi james,

    Part numbers can be assigned when you add file to the vault.but not during a state change.

To Assign a serail to assing serial numbers to Files. Add a variable to File Data cards which takes default value from a serial number.

Regards

Ravi T