Transform coordinates to Unreal

I have an object that I want to place in a relative location w.r.t. its parent using SetRelativeXXX. The object’s coordinate system is different to Unreal’s. How can I transform the position so that it works in Unreal using C++ please?

For the object:
positive x is to the right (x axis is left / right relative to parent).
positive y is up (y axis is up / down relative to parent)
negative z is forward (relative to parent)

FVector RelativeVector = FVector(MyVector.Z, MyVector.X, MyVector.Y)

However if this is a 3D object you’ve imported with a different coordinate system from a 3D package like Blender, you can usually export it with a coordinate system that matches UE.