A connector position assurance device having a resiliently deformable beam has a free end spaced from the base portion. A camming member is provided proximate the free end of the beam. The beam has a lockout projection engagement member provided proximate the free end of the beam and in-line with the camming member. The engagement surface extends at a first angle such that the engagement surface proximate an outer side wall is closer to the free end than the engagement surface proximate a surface of the camming member. The engagement surface extends at a second angle such that the engagement surface proximate a top surface of the lockout projection engagement member is closer to the free end than the engagement surface proximate a top side of the beam.