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CattabianiI
in reply to: nnikbin

Is SurfaceBody.MassProperties removed from Inventor 2024 API?
No, and it's documented in the link you posted: https://help.autodesk.com/view/INVNTOR/2024/ENU/?guid=SurfaceBody_MassProperties


> Is it defined in an assembly reference the should be added to the project?
You should reference the Autodesk.Inventor.Interop.dll of Inventor 2024.