Additional Capabilities > Windchill Supplier Management > Working with Manufacturer and Vendor Parts > Information Page for the OEM Part > Creating an OEM Part
  
Creating an OEM Part
An OEM part is a design part that is purchased from a supplier and therefore needs to be associated with a manufacturer or vendor part. To indicate that a part is an OEM part, when creating or editing the part, you must set the Source attribute to Buy or Buy - Single Source.
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Windchill Supplier Management processes and workflows are designed for OEM parts. Only OEM parts can have an associated AML/AVL.