  The smallness of flavor changing neutral currents constrains the soft
parameter space of supersymmetric extensions of the Standard Model. These low
energy constraints are translated to the soft parameter space generated at some
high energy scale $\Mgut$. For gaugino masses larger than the scalar masses and
non-universal $A$-terms the constraints are significantly diluted at $\Mgut$
and do allow for the possibility of non-universal scalar masses. The strongest
constraints arise in the slepton sector of the theory.
