erum 0 Junior Poster in Training

i need consultancy about the third party component pd shop (shopping cart)
this component has certain limitation .for example if u have item1 and add it to cart with certain configuration like size is 1 and color is blue but when u added same item with different configuration like red in color with size1 it does not distinguish b/w it (and does not create another row). how can we overcome this kind of problem
please let me know if need further detail